Document:

<PAGE>

                                                                   Exhibit 10.38

                                                                  EXECUTION COPY

================================================================================

                               PURCHASE AGREEMENT

                                     between

                                  ST. LOUE, LLC

                                       and

                              CLEARWIRE CORPORATION

                                       and

                         CLEARWIRE SPECTRUM HOLDINGS LLC

                          Dated as of September 9, 2005

[*** Confidential Treatment Requested]

================================================================================

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
ARTICLE 1 DEFINITIONS....................................................     1
ARTICLE 2 PURCHASE AND SALE OF ASSETS....................................     4
ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF SELLER.......................     5
ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF PURCHASER....................     9
ARTICLE 5 COVENANTS AND OTHER AGREEMENTS.................................    10
ARTICLE 6 CONDITIONS TO CLOSING..........................................    13
ARTICLE 7 TERMINATION....................................................    15
ARTICLE 8 SURVIVAL AND REMEDIES..........................................    15
ARTICLE 9 MISCELLANEOUS..................................................    18
</TABLE>

                             SCHEDULES AND EXHIBITS

Exhibit A License
Exhibit B Form of Instrument of Assignment for License
Exhibit C Form of Joinder to Amended and Restated Stockholders Agreement
Exhibit D Form of Stockholder Questionnaire
Exhibit E Interference Agreements
Exhibit F Form of Joinder to Registration Rights Agreement
Exhibit G Form of Side Letter Regarding Registration Rights

<PAGE>

                               PURCHASE AGREEMENT

     This PURCHASE AGREEMENT, dated as of September 9, 2005 (the "Effective
Date"), is among St. LouE, LLC, a Delaware limited liability company ("Seller"),
Clearwire Spectrum Holdings LLC, a Nevada limited liability company
("Purchaser"), and Clearwire Corporation, a Delaware corporation ("Clearwire"),
the parent corporation of Purchaser (for the limited purpose of issuing stock
pursuant to Section 2.3 and for the limited purpose of making the
representations in Article 4 and the applicable covenants in Article 5). Seller,
Clearwire and Purchaser may be referred to herein as "Parties" or each as a
"Party."

     A. Seller holds a license ("License") granted by the FCC authorizing Seller
to construct and operate a Broadband Radio Service ("BRS"), formerly known as
Multipoint Distribution Service, using call sign [***] on channels *** (the
"Seller Channels") in the *** market, a copy of which is attached as Exhibit A.

     B. Seller desires to assign the License to Purchaser, and Purchaser desires
to acquire the License on the terms and subject to the conditions set forth in
this Agreement.

     NOW, THEREFORE, in consideration of the premises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the Parties agree as follows:

                              ARTICLE 1 DEFINITIONS

     As used in this Agreement, the following terms shall have the meanings set
forth or referenced below:

     "Accredited Investor" means as this term is defined in Rule 501(a) of
Regulation D as promulgated by the U.S. Securities and Exchange Commission under
the Securities Act.

     "Affiliate" means, with respect to any Person, any other Person that,
directly or indirectly, alone or through one or more intermediaries, controls,
is controlled by or is under common control with that Person. For purposes of
this definition, "control" (including the terms "controlling" and "controlled")
means the power to direct or cause the direction of the management and policies
of a Person, directly or indirectly, whether through the ownership of securities
or partnership or other ownership interests, by contract or otherwise.

     "Agreement" means this Purchase Agreement and all Exhibits and Schedules
hereto, as amended, supplemented or otherwise modified from time to time in
accordance with the terms hereof.

     "BRS" is defined in Recital A.

     "Business Day" means any day, other than a Saturday or Sunday, on which
commercial banks are open for business in Seattle, Washington.

     "Claim" is defined in Section 8.4(a).

<PAGE>

     "Clearwire" is defined in the preamble.

     "Clearwire Stock" is defined in Section 2.3.

     "Close" means the process and result of Closing.

     "Closing" is defined in Section 2.4.

     "Closing Date" is defined in Section 2.4.

     "Confidential Information" means any and all information regarding the
business, finances, operations, products, services and customers of the
Purchaser or Seller and their respective Affiliates, in written or oral form or
in any other medium.

     "Consent" means any consent or approval of Governmental Authorities or
other third parties necessary to authorize, approve or permit the Parties hereto
to consummate the Transactions.

     "Damages" means any and all losses, claims, demands, liabilities,
obligations, actions, suits, orders, statutory or regulatory compliance
requirements, or proceedings asserted by any Person, and all damages, costs,
expenses, assessments, judgments, recoveries and deficiencies, including
interest, penalties, investigatory expenses, consultants' fees, and reasonable
attorneys' fees and costs, of every kind and description.

     "Deposit" is defined in Section 2.2.

     "Disclosure Memorandum" means that certain draft Disclosure Memorandum of
Clearwire dated March 14, 2005, a copy of which has been provided to Seller.

     "Effective Date" is defined in the preamble.

     "FCC" means the Federal Communications Commission or any successor agency
thereof.

     "FCC Application" is defined in Section 5.7.

     "Final Order" means an action or decision of the FCC as to which (i) no
request for a stay or similar request is pending, no stay is in effect, the
action or decision has not been vacated, reversed, set aside, annulled or
suspended and any deadline for filing such request that may be designated by
statute or regulation has passed, (ii) no petition for rehearing or
reconsideration or application for review is pending and the time for the filing
of any such petition or application has passed, (iii) the FCC does not have the
action or decision under reconsideration on its own motion and the time within
which it may effect such reconsideration that may be designated by statute or
rule has passed, and (iv) no appeal is pending including other administrative or
judicial review, or in effect and any deadline for filing any such appeal that
may be designated by statute or rule has passed.

<PAGE>

     "Governmental Authority" means a Federal, state or local court,
legislature, governmental agency (including the United States Department of
Justice), commission or regulatory or adrninistrative authority or
instrumentality.

     "Interference Agreements" means the agreements listed in Exhibit E hereto
and further described in Section 3.4(e) below.

     "Law" means applicable common law and any statute, ordinance, code or other
law, rule, permit, permit condition, regulation, order, decree, technical or
other standard, requirement or procedure enacted, adopted, promulgated, applied
or followed by any Governmental Authority.

     "Lease/Option Agreement" means that certain Tower Site Lease Option, dated
*** by and among ***.

     "License" is defined in Recital A.

     "Lien" means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset, other than: (1)
for liens for taxes not yet due and payable, and (2) rights and restrictions
imposed by FCC rules or policies, or the Communications Act of 1934, as amended,
and (3) the Interference Agreements listed in Exhibit E hereto.

     "Party" or "Parties" is defined in the preamble.

     "Person" means any general partnership, limited partnership, limited
liability company, corporation, joint venture, trust, business trust,
Governmental Authority, cooperative, association, other entity, or individual,
and the heirs, executors, administrators, legal representatives, successors, and
assigns of such person as the context may require.

     "Purchase Price" is defined in Section 2.3.

     "Purchaser" is defined in the preamble.

     "Purchaser Indemnified Parties" is defined in Section 8.2.

     "Reasonable Efforts" means the efforts that a reasonably prudent person or
entity desirous of achieving a result would use in similar circumstances to
ensure that such result is achieved; provided, however, that an obligation to
use Reasonable Efforts under this Agreement does not require the Party subject
to that obligation to take actions or incur costs that would result in a
materially adverse change in the benefits such Party expects to realize from
this Agreement.

     "Securities Act" means the Securities Act of 1933, as amended.

     "Seller" is defined in the preamble.

<PAGE>

     "Seller Channels" is defined in Recital A.

     "Seller Indemnified Parties" is defined in Section 8.3.

     "Tax" or "Taxes" means any taxes, assessment, duties, fees, levies,
imposts, deductions, or withholdings, including income, gross receipts, ad
valorem, value added, excise, real or personal property, asset, sales, use,
license, payroll, transaction, capital, net worth and franchise taxes, estimated
taxes, withholding, employment, social security, workers compensation, utility,
severance, production, unemployment compensation, occupation, premium, windfall
profits, transfer and gains taxes, or other governmental charges of any nature
whatsoever, imposed by any Taxing Authority of any government or country or
political subdivision of any country, and any liabilities with respect thereto,
including any penalties, additions to tax, fines or interest thereon and
includes any liability for Taxes of another person by contract or as a
transferee or successor.

     "Tax Return" means any report, return, statement, estimate, declaration,
notice, form or other information required to be supplied to a Taxing Authority
in connection with Taxes.

     "Taxing Authority" shall mean the Internal Revenue Service and any other
Governmental Authority responsible for the administration of any Tax.

     "Transactions" means the transactions contemplated by this Agreement.

                      ARTICLE 2 PURCHASE AND SALE OF ASSETS

     Section 2.1 Purchase and Sale. On the terms and subject to the conditions
of this Agreement, at the Closing, Seller shall sell, assign, transfer, convey
and deliver to Purchaser or another wholly-owned subsidiary of Clearwire,
designated by Clearwire as provided in Section 5.7 hereafter, and Purchaser
shall purchase and assume from Seller all of Seller's right, title and interest
as of the Closing Date in and to: (i) the License, free and clear of all Liens;
and (ii) the Interference Agreements. The Lease/Option Agreement is specifically
excluded from Seller's sale, assignment, transfer, conveyance and delivery
herein to Purchaser or any other wholly-owned subsidiary of Clearwire, and
Purchaser shall not hereby purchase or assume from Seller any of Seller's right,
title and interest under the Lease/Option Agreement.

     Section 2.2 Deposit. Within five (5) Business Days of the date of this
Agreement, Purchaser shall pay Seller *** as a deposit (the "Deposit"). The
Deposit shall be applied against the Purchase Price (as defined below)
dollar-for-dollar in the event that the Transactions described by this Agreement
close. Seller shall return the Deposit to Purchaser, within five (5) Business
Days of such termination, in the event that this Agreement is terminated by
Seller pursuant to Section 7.1(b) or 7.1(d) before the Transactions Close. The
Deposit shall be retained by Seller, at its election, as liquidated damages in
the event that this Agreement is terminated by Seller before the Transactions
Close pursuant to Section 7.1(c).

     Section 2.3 Payment of Purchase Price. As consideration for sale and
assignment of the License and the Interference Agreements to Purchaser,
Purchaser shall

<PAGE>

deliver or cause to be delivered to Seller the monetary funds and stock (the
"Purchase Price") in the amounts and quantities, and at the times specified
below:

          (a) At the Closing, the Deposit shall be first applied against the
     Purchase Price as described above;

          (b) *** shall be payable at the Closing in immediately available funds
     via wire transfer to an account designated by Seller;

          (c) With respect to the balance of the Purchase Price after
     application of the Deposit and the wire transfer of funds, Clearwire shall
     issue to Seller an aggregate total of *** Shares of Clearwire's Class A
     common stock ("Clearwire Stock"): provided, however, if at the time of
     Closing, Seller is not an Accredited Investor, then the portion of the
     Purchase Price otherwise payable to Seller in Clearwire Stock, shall be
     payable to Seller at the Closing, in immediately available funds via wire
     transfer to an account designated by Seller, in substitution for delivery
     of the Clearwire Stock to Seller, at the value of the Clearwire Stock as of
     the date of this Agreement. The number of shares of the Clearwire Stock
     shall be adjusted, if necessary to account for any stock split, cash
     dividend, stock dividend, or other distribution or recapitalization in
     respect of Clearwire's issued and outstanding stock between now and the
     Closing.

     Section 2.4 Closing. Upon the terms and subject to the conditions hereof,
the closing of the sale of the License (the "Closing") shall take place at the
offices of Davis, Wright Tremaine, LLP, 1500 K Street, N.W., Washington, DC
20005, within five (5) Business Days following the date on which the last
condition under Article 6 has been satisfied or waived, or at such other time
and place as the Parties may mutually agree. The date on which Closing occurs is
called the "Closing Date."

               ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF SELLER

          Seller represents and warrants to Purchaser as follows:

     Section 3.1 Authorization. Seller is lawfully existing and in good standing
under the laws of the State of Delaware, and has all requisite power and
authority to enter into this Agreement and to perform the obligations to be
performed by it under this Agreement. The execution and delivery of this
Agreement, and the performance by Seller of its obligations hereunder, have been
duly authorized by all necessary action on the part of Seller.

     Section 3.2 Enforceability. This Agreement has been duly executed and
delivered by Seller and is a legal, valid and binding obligation of Seller,
enforceable against Seller in accordance with its terms, subject to bankruptcy,
insolvency, fraudulent transfer, reorganization, moratorium and similar laws of
general applicability relating to or affecting creditors' rights, and to general
equity principles and FCC Consent. Each other agreement, document, instrument or
certificate contemplated by this Agreement to be delivered by Seller to
Purchaser, if and when so delivered, will be duly executed and delivered by
Seller and a

<PAGE>

legal, valid and binding obligation of Seller, enforceable against Seller in
accordance with its terms, subject to bankruptcy, insolvency, fraudulent
transfer, reorganization, moratorium and similar laws of general applicability
relating to or affecting creditors' rights, and to general equity principles and
FCC Consent.

     Section 3.3 No Conflicts or Consents. Neither the execution, delivery and
performance by Seller of this Agreement, nor the consummation of the
Transactions by Seller, will: (i) constitute, with or without the giving of
notice or passage of time or both, a breach, violation or default by Seller or
any of its Affiliates, create a Lien, or give rise to any right of termination,
modification, cancellation, prepayment or acceleration, under (x) any Law or
license (subject to receipt of Consent of the FCC), or (y) any note, bond,
mortgage, indenture, lease, agreement or other instrument, in each case which is
applicable to or binding upon Seller or the License; (ii) require any Consent,
other than the Consent of the FCC; or (iii) violate any Law by which Seller is
bound.

     Section 3.4 FCC Matters.

          (a) The license attached hereto as Exhibit A is a true and correct
     copy of the License. There is no other condition, to the knowledge of
     Seller, imposed by the FCC as part of the License that is neither set forth
     on the face of the License as issued by the FCC, or contained in the FCC
     rules applicable generally to the licenses of the type, nature and class or
     location of the License. No other licenses or authorizations are required
     from the FCC for the operations of facilities in compliance with the
     License on the Seller Channels in the market area as of the Effective Date.
     Except as set forth in Section 3.5 below, no Person other than Seller has
     any right, title, interest or claim in or to the License. The License has
     been granted to Seller by Final Order and is in full force and effect.

          (b) Excluding the proceedings in WT Docket No. 03-66, there is not
     pending or, to the knowledge of Seller, threatened against Seller or the
     License before the FCC or any other Governmental Authority any application,
     action, petition, objection or other pleading, or any proceeding with the
     FCC or any other Governmental Authority, which (i) questions or contests
     the validity of, or seeks the revocation, forfeiture, non-renewal or
     suspension of, the License, (ii) seeks the imposition of any modification
     or amendment with respect thereof, (iii) which would adversely affect the
     ability of Seller to consummate the Transactions, or (iv) seeks the payment
     of a fine, sanction, penalty, damages or contribution in connection with
     the use of the License. To Seller's knowledge there are no facts or
     circumstances existing that would give rise to any such application,
     action, petition, objection or other pleading, or proceeding with the FCC
     or any other Governmental Authority.

          (c) Other than under the Interference Agreements listed in Exhibit E
     hereto, Seller has not located, in a search of its readily available
     records as of the Effective Date, any other written agreements to accept or
     allow any electromagnetic interference from any other FCC licensees,
     permittees or applicants with respect to the License and/or Seller
     Channels, and, to Seller's knowledge, no other such

<PAGE>

     licensees, permittees or applicants have agreed to accept electromagnetic
     interference from Seller with respect to their respective facilities.

          (d) To Seller's knowledge, Seller is in compliance with all applicable
     Laws except for any non-compliance that, individually or in the aggregate,
     will not have a material adverse effect on the License or on Seller's
     ability to consummate the Transactions. To Seller's knowledge, since the
     grant of the Seller's most recent renewal application for the License,
     Seller has complied in all material respects with FCC Laws applicable to
     the License, including without limitation the Communication Act of 1934, as
     amended. Since the issuance of the License, Seller has not received a
     notice of non-compliance from the FCC. To Seller's knowledge all material
     documents required to be filed at any time by Seller with the FCC with
     respect to the License have been timely filed or the time period for such
     filing has not lapsed. To Seller's knowledge, all such documents filed
     since the date that the License was issued to Seller are correct in all
     material respects. All amounts owed to the FCC in connection with the
     License have been timely paid.

          (e) As of the Effective Date, the facilities subject to the License
     for which certification or notification of completion of construction has
     been filed with the FCC are not operating.

     Section 3.5 Title to License/Lease. Except as recited in this Section,
Seller holds the License free and clear of any Liens.

     Section 3.6 Taxes. All Tax Returns required to be filed by Seller have been
timely filed, and Seller is not the beneficiary of any extension of time within
which to file any Tax Return. All such Tax Returns are true, complete and
correct in all material respects. To Seller's knowledge all Taxes owed by Seller
(whether or not shown on any Tax Return) have been paid, including, without
limitation with respect to any BRS transmission facilities. Seller has withheld
and paid to the appropriate Taxing Authority all Taxes required to have been
withheld and paid in connection with amounts paid or owing to any employee,
independent contractor, creditor, member or other third party. Seller has not
waived any statute of limitations in respect to Taxes or agreed to any extension
of time with respect to an assessment or deficiency of Taxes. No adjustment
relating to any Tax Returns filed by Seller has been proposed by any Taxing
Authority and remains unresolved. There are no Tax Liens on the License, other
than Liens for Taxes that are not yet due and payable. Seller is not a "foreign
person" within the meaning of Section 1445 of the Code. The License does not
secure any indebtedness, the interest on which is tax-exempt under Section
103(a) of the Code. The License is not "tax-exempt use property" within the
meaning of Section 168(h) of the Code.

<PAGE>

     Section 3.7 Litigation. Other than proceedings of general applicability
(such as WT Docket No. 03-66), there is no legal proceeding now in progress or
pending or, to the knowledge of the Seller, threatened against Seller or the
License or the business of Seller, nor to the knowledge of Seller does there
exist any basis therefor. Seller is not subject to any order, writ, injunction
or decree of any court or any federal, state, municipal or other domestic or
foreign Governmental Authority.

     Section 3.8 Brokers. Seller has engaged Paul Lucci ("Mr. Lucci") and Cheval
Capital, Inc. ("Cheval") as brokers regarding the Transactions, and Seller shall
be solely responsible for payment of any brokerage commissions to Mr. Lucci and
Cheval. Other than Mr. Lucci and Cheval, neither Seller nor any of its
Affiliates has employed any other broker or finder or incurred any liability for
any other brokerage or finding fees or commissions in connection with the
Transactions.

     Section 3.9 Securities Representations.

          (a) Seller is an Accredited Investor. Seller is acquiring the
     Clearwire Stock for its own account, for investment purposes only and not
     with a view to the distribution (as such term is used in Section 2(11) of
     the Securities Act) thereof. Seller understands that the Clearwire Stock
     has not been registered under the Securities Act and cannot be sold or
     otherwise transferred unless subsequently registered under the Securities
     Act or an exemption from such registration is available.

          (b) Seller is knowledgeable and experienced in the telecommunications
     industry and is capable of evaluating the risks and merits of the
     transactions contemplated by this Agreement, including the acquisition of
     shares of Clearwire Stock, and making an informed decision with respect
     thereto. Seller has received the Disclosure Memorandum from Purchaser in
     sufficient time to review and analyze its contents prior to the execution
     of this Agreement. Seller and its representatives have had sufficient
     opportunity to ask questions of and receive answers from Purchaser and
     Clearwire concerning the business of Clearwire, its operations, assets and
     liabilities. Seller and its representatives have had an opportunity to
     review all documents and records concerning Clearwire and its business that
     Seller has requested. Seller has conducted its own independent assessment,
     analysis and investigation with respect to Clearwire and its business at
     the time of entering into this Agreement and has agreed to enter into this
     Agreement and accept Clearwire Stock as partial payment of the Purchase
     Price based solely on this assessment, analysis and investigation, and the
     representations and warranties of Purchaser and Clearwire set forth in this
     Agreement and the information contained in the Disclosure Memorandum.

          (c) Seller is aware that Clearwire is a speculative enterprise, that
     certain of the information disclosed to it contain forward looking
     statements which involve risks and uncertainties, and that Clearwire's
     actual results may differ significantly from the results discussed in these
     forward looking statements. Seller further acknowledges that the value of
     Clearwire's respective assets is inherently uncertain and is dependent upon
     market, technological, and regulatory developments concerning feasible and

<PAGE>

     allowable uses. Seller represents and warrants to Purchaser and Clearwire
     that it has assessed these factors independently and has agreed to enter
     into this Agreement without reliance upon or expectation of any disclosures
     of any kind from Purchaser or Clearwire, except as set form in this
     Agreement and the Disclosure Memorandum.

          (d) For purposes of application of state securities law, Seller is a
     resident of the jurisdiction of the State of Florida.

              ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF PURCHASER

     Each of Clearwire and Purchaser hereby represents and warrants to Seller as
follows:

     Section 4.1 Existence; Authorization. Each of Clearwire and Purchaser is
lawfully existing and in good standing under the laws of the State of Delaware,
has all requisite power and authority to enter into this Agreement and to
perform the obligations to be performed by it under this Agreement. Except for
obtaining board approval from Clearwire, the execution and delivery of this
Agreement, and the performance by Purchaser and Clearwire of its respective
obligations hereunder, have been duly authorized by all necessary action on the
part of Purchaser and Clearwire, respectively.

     Section 4.2 Enforceability. This Agreement has been duly executed and
delivered by each of Clearwire and Purchaser and is a legal, valid and binding
obligation of each of Clearwire and Purchaser, enforceable against Clearwire and
Purchaser in accordance with its terms, subject to bankruptcy, insolvency,
fraudulent transfer, reorganization, moratorium and similar laws of general
applicability relating to or affecting creditors' rights and to general equity
principles, and FCC Consent. Each other agreement, document, instrument or
certificate contemplated by this Agreement to be delivered by Purchaser or
Clearwire to Seller, if and when so delivered, will be duly executed and
delivered by each of Clearwire and Purchaser and a legal, valid and binding
obligation of each of Clearwire and Purchaser, enforceable against Clearwire and
Purchaser in accordance with its terms, subject to bankruptcy, insolvency,
fraudulent transfer, reorganization, moratorium and similar laws of general
applicability relating to or affecting creditors' rights and to general equity
principles, and FCC Consent.

     Section 4.3 No Conflicts or Consents. Neither the execution, delivery and
performance by Clearwire or Purchaser of this Agreement, nor the consummation of
the Transactions by Clearwire or Purchaser, will (i) constitute, with or without
the giving of notice or passage of time or both, a breach, violation or default
by Clearwire or Purchaser or any of their Affiliates, or give rise to any right
of termination, modification, cancellation, prepayment or acceleration, under
(x) any Law or license (subject to receipt of Consent of the FCC), or (y) any
note, bond, mortgage, indenture, lease, agreement or other instrument, in each
case which is applicable to or binding upon Clearwire or Purchaser; (ii) require
any Consent, other than the Consent of the FCC and board approval from
Clearwire; or (iii) violate any Law by which Clearwire or Purchaser is bound.

<PAGE>

     Section 4.4 Brokers. Neither Clearwire, Purchaser, nor any affiliate of
either has employed any broker or finder or incurred any liability for any
brokerage or finder's fees or commissions in connection with the Transactions.

     Section 4.5 Securities to be Issued to Seller. Purchaser and Clearwire
hereby jointly and severally represent and warrant to Seller that upon the
issuance and delivery by Clearwire to Seller pursuant to this Agreement, the
Clearwire Stock will be duly issued, fully paid and non-assessable, and will be
free of restrictions on transfer other than restrictions on transfer under this
Agreement and the Amended and Restated Stockholders Agreement dated March
16,2004, by and among Clearwire and Clearwire's stockholders to which Seller
will be a party to by joinder, the Registration Rights Agreement dated March
16,2004 to which Seller will be a party to by joinder and applicable securities
laws. Prior to the Closing, Clearwire shall deliver to Seller any updates to the
Disclosure Memorandum or other updated disclosures it has delivered to third
party investors prior to the Effective Date. Each of Purchaser and Clearwire
represents and warrants that Clearwire's Board of Directors has approved the
issuance of the Clearwire Stock pursuant to this Agreement and Clearwire's
execution, delivery and performance of this Agreement. Subject in part to the
truth and accuracy of the Seller's representations in Section 3.9, the offer,
sale and issuance of the Clearwire Stock as contemplated by this Agreement are
exempt from the registration requirements of the Securities Act and applicable
state securities laws, and Clearwire will take no action hereafter that would
cause the loss of such exemptions.

     Section 4.6 FCC Qualification. Purchaser is legally, technically,
financially, and otherwise qualified to acquire and hold the License from Seller
under the rules and policies of the FCC and the Communications Act of 1934, as
amended.

     Section 4.7 Proceedings. There is no action, proceeding or investigation
pending or, to the knowledge of Purchaser, threatened against Purchaser, or
Purchaser's property or assets, that would be reasonably expected to have an
adverse effect on Purchaser's ability to consummate the Transactions, or which
seeks to prevent or challenge the Transactions.

                    ARTICLE 5 COVENANTS AND OTHER AGREEMENTS

     Section 5.1 Consummation of Transactions/Clearwire Board Approval. From and
after the date of this Agreement, each Party shall use Reasonable Efforts to
take, or cause to be taken, all actions, and to do, or cause to be done, all
things necessary, proper or advisable and consistent with applicable Law to
perform its obligations under this Agreement and to consummate the Transactions
as soon as reasonably practicable. Clearwire covenants that it will seek
approval of the transactions contemplated by this Agreement at the next
regularly scheduled meeting of the board of directors of Clearwire after the
execution of this Agreement, if not before.

<PAGE>

     Section 5.2 Compliance with Law. Prior to Closing, Seller shall comply in
all material respects with Laws applicable to the License.

     Section 5.3 Certain Notices. Prior to the Closing, each Party shall
promptly notify the other Parties in reasonable detail:

          (a) upon the commencement of, or the impending or threatened
     commencement of, or upon obtaining knowledge of any facts that would give
     rise to, any claim, action or proceeding brought to enjoin the consummation
     of the Transactions, or against or relating to (i) the notifying Party or
     its properties or assets, which could materially adversely affect the
     Transactions or its ability to perform its obligations hereunder, or (ii)
     the License or its use;

          (b) upon the occurrence of, or the impending or threatened occurrence
     of, or upon obtaining knowledge of any facts that would give rise to, any
     event which could cause or constitute a material breach of any of its
     representations, warranties, covenants or agreements contained in this
     Agreement, and until the Closing shall use Reasonable Efforts to prevent or
     promptly remedy such breach; and

          (c) upon the occurrence or existence of any event, condition,
     circumstance or state of facts known to the notifying Party, which has had
     or could have a material adverse effect on the Transactions or its ability
     to perform its obligations hereunder, or could materially adversely affect
     the License or its use.

     Section 5.4 Confidentiality. Pursuant to this Agreement and the performance
thereof, each Party may receive certain Confidential Information. The use of
such Confidential Information shall be governed by that certain letter agreement
addressed to Seller from Clearwire, dated September 16,2004 (the
"Confidentiality Agreement"): provided, however, nothing in this Agreement or
the Confidentiality Agreement shall prevent a Party from disclosing information
that is required to be disclosed pursuant to federal securities laws, but in
such event, only to the extent such disclosure is required. In addition, Seller
acknowledges and agrees that the financial terms of this Agreement may be
required to be separately stated in the consolidated financial statements of
Purchaser and/or its Affiliates and that the disclosure by Purchaser or its
Affiliates of such financial statements shall not be a breach of this Agreement
or the Confidentiality Agreement. Purchaser agrees to undertake to comply with
the Confidentiality Agreement with regard to Confidential Information as if it
were Clearwire.

     Section 5.5 Further Assurances. Prior to, at and following the Closing,
each Party shall forthwith upon request execute and deliver such documents and
take such actions as may reasonably be requested by the other Party in order to
effectuate the purposes of this Agreement.

     Section 5.6 FCC Qualifications. Seller and Purchaser each hereby covenants
and agrees that, prior to the Closing, it shall use Reasonable Efforts not to
take action that will remove any of those qualifications required by FCC rules
or policies, or the Communications Act of 1934, as amended, for it to hold the
License.

<PAGE>

     Section 5.7 FCC Consent. Seller and Purchaser will use Reasonable Efforts
to prepare all application forms and related exhibits, certifications and other
documents necessary to secure the Consent of the FCC to the Transactions
(collectively, the "FCC Application") and to file the FCC Application within ten
(10) Business Days following the Effective Date. If Purchaser desires to
designate another wholly-owned subsidiary of Clearwire to receive the License at
the Closing, it may do so at any time prior to the filing of the FCC Application
without restriction, or at any time after the filing of the FCC Application only
if such designation would not result in a delay in the FCC's consideration of
the FCC Application. Seller and Purchaser each will promptly and diligently
prepare, file and prosecute all necessary amendments, briefs, pleadings,
petitions for reconsideration, applications for review, waiver requests,
documents and supporting data, and take all such actions and give all such
notices as may be required or requested by the FCC or as may be appropriate to
expedite the grant of the FCC Application without conditions materially adverse
to Seller or Purchaser. If any person or entity petitions the FCC to deny the
FCC Application, or if the FCC grants such application and any person or entity
petitions for reconsideration or review of such grant before the FCC or appeals
or applies for review in any judicial proceeding, then Seller and Purchaser will
use their Reasonable Efforts to oppose such petition before the FCC or defend
such grant by the FCC. If the FCC denies the FCC Application or grants such
application with conditions materially adverse to Seller or Purchaser, then if
requested to do so by the other Party, Seller and Purchaser will use their
Reasonable Efforts to secure reconsideration or review of such action. If the
Closing has not occurred within 180 days following the date of the grant of the
FCC Application, Seller and Purchaser shall use Reasonable Efforts to obtain
such extensions of the effectiveness of such grant as is reasonably necessary to
permit the scheduling of Closing pursuant to Section 2.4. Purchaser will be
responsible for the payment of all FCC application filing fees incurred in
connection with this Section 5.7.

     Section 5.8 Seller Affirmative Covenants. From the Effective Date until the
Closing Seller shall use Reasonable Efforts to (a) preserve the License; and (b)
comply with all Laws applicable to the License.

     Section 5.9 Seller Negative Covenants. Subject to the requirements of WT
Docket No. 03-66, Seller shall not, and shall not enter into, any agreement,
arrangement or understanding to, or otherwise offer or commit to (a) sell,
transfer, assign, lease or dispose of the License or of the spectrum to be
covered by the License or any interests therein or portion thereof, or negotiate
therefore, or (b) create, incur or suffer to exist any Lien or other liability
on the License or the spectrum to be covered by the License or any interest
therein.

     Section 5.10 Access. Subject to the provisions of Section 5.4 above
regarding confidentiality, between the date of this Agreement and the Closing
Date, Seller shall, during normal business hours and following reasonable
advance written notice from Purchaser (a) give Purchaser and its representatives
and advisors access to all books and records of Seller relating to the License;
(b) permit Purchaser and its representatives and advisors to make such
inspections thereof as Purchaser may reasonably request; and (c) cause the
officers and advisors of Seller to furnish Purchaser with such information with
respect to the License as Purchaser may from time to time reasonably request.

<PAGE>

     Section 5.11 Publicity. Neither Seller nor Purchaser shall issue any press
release or public announcement concerning this Agreement or the transactions
contemplated hereby without obtaining the prior written approval of the other
party hereto, which approval will not be unreasonably withheld or delayed,
unless disclosure is otherwise required by applicable Law, provided that, to the
extent required by applicable Law, the party intending to make such release
shall use its Reasonable Efforts consistent with such applicable Law to consult
with the other party with respect to the text thereof.

                         ARTICLE 6 CONDITIONS TO CLOSING

     Section 6.1 Conditions to the Obligations of Both Parties. Each Party's
obligation to consummate the Transactions contemplated by this Agreement are
subject to the satisfaction or waiver, on or prior to the Closing Date, of each
of the following conditions, as applicable to the Party specified:

          (a) The FCC shall have granted the FCC Application, such grant shall
     have become Final Order, and such Final Order shall be in full force and
     effect; and all other notices, filings and Consents required to be made or
     obtained prior to the Closing by either Party or any of its respective
     Affiliates with any Governmental Authority in connection with the execution
     and delivery of this Agreement and the consummation of the Transactions
     shall have been made or obtained.

          (b) No preliminary or permanent injunction or other order, decree or
     ruling issued by a Governmental Authority, nor any Law promulgated or
     enacted by any Governmental Authority, shall be in effect that would impose
     material limitations on the ability of either Party to consummate the
     Transactions.

     Section 6.2 Conditions to the Obligations of Seller. Seller's obligation to
consummate the Transactions contemplated by this Agreement are subject to the
satisfaction or waiver on or prior to the Closing Date of the following
conditions:

          (a) The representations and warranties of Purchaser and Clearwire
     contained herein shall be true and correct in all material respects (except
     for representations and warranties that are qualified as to materiality,
     which shall be true and correct) as of the Closing as if made on and as of
     the Closing Date (except that representations and warranties that are made
     as of a specific date need be so true and correct only as of such date),
     and Seller shall have received certificates to such effect dated the
     Closing Date and executed by a duly authorized officer of Purchaser and
     Clearwire, respectively.

          (b) The covenants and agreements of Purchaser and Clearwire to be
     performed under this Agreement on or prior to the Closing shall have been
     duly performed in all material respects, and Seller shall have received
     certificates to such effect dated the Closing Date and executed by a duly
     authorized officer of Clearwire and Purchaser, respectively.

          (c) Purchaser and Clearwire having delivered to Seller the Purchase
     Price pursuant to Section 2.3.

<PAGE>

          (d) If Seller is an Accredited Investor on the Closing Date and is to
     receive Clearwire Stock pursuant to Section 2.3, Purchaser shall have
     executed and delivered to Seller: (i) a joinder, attached hereto as Exhibit
     C, to the Amended and Restated Stockholders Agreement, dated March 16,
     2004, by and among Clearwire and Clearwire's stockholders; (ii) a joinder
     to the Registration Rights Agreement, dated as of March 16, 2005, between
     Clearwire Corporation and certain holders of Clearwire's Class A Common
     Stock attached hereto as Exhibit F; and (iii) a side letter, attached
     hereto as Exhibit G, with respect to the Registration Rights Agreement.

          (e) Purchaser shall have executed and delivered to Seller an
     Instrument of Assignment with respect to the License and the Interference
     Agreements in the form of Exhibit B.

     Section 6.3 Conditions to the Obligations of Purchaser. Purchaser's
obligation to consummate the Transactions contemplated by this Agreement are
subject to the satisfaction or waiver on or prior to the Closing Date of each of
the following conditions:

          (a) The representations and warranties of Seller contained herein
     shall be true and correct in all material respects (except for
     representations and warranties that are qualified as to materiality, which
     shall be true and correct) as of the Closing as if made on and as of the
     Closing Date (except that representations and warranties that are made as
     of a specific date need be so true and correct only as of such date), and
     Purchaser shall have received certificates to such effect dated the Closing
     Date and executed by a duly authorized officer of Seller.

          (b) The covenants and agreements of Seller to be performed under this
     Agreement on or prior to the Closing shall have been duly performed in all
     material respects, and Purchaser shall have received a certificate to such
     effect dated the Closing Date and executed by a duly authorized officer of
     Seller.

          (c) Seller shall have executed and delivered to Purchaser an
     Instrument of Assignment with respect to the License and the Interference
     Agreements in the form of Exhibit B.

          (d) If Seller is an Accredited Investor on the Closing Date and is to
     receive Clearwire Stock pursuant to Section 2.3, Seller shall have executed
     and delivered to Clearwire: (i) a joinder, attached hereto as Exhibit C. to
     the Amended and Restated Stockholders Agreement, dated March 16, 2004, by
     and among Clearwire and Clearwire's stockholders; (ii) a joinder to the
     Registration Rights Agreement, dated as of March 16, 2005, between
     Clearwire Corporation and certain holders of Clearwire's Class A Common
     Stock attached hereto as Exhibit F; and (iii) a side letter, attached
     hereto as Exhibit G, with respect to the Registration Rights Agreement; and
     (iv) a completed Stockholder Questionnaire in the form attached hereto as
     Exhibit D.

          (e) Seller shall have delivered to Purchaser a completed IRS Form W-9.

<PAGE>

          (f) Clearwire's board of directors shall have approved the
     transactions contemplated by this Agreement.

                              ARTICLE 7 TERMINATION

     Section 7.1 Termination. This Agreement may be terminated at any time:

          (a) by mutual written consent of Purchaser and Seller;

          (b) (i) by Seller if the board of directors of Clearwire has not
     approved the transactions contemplated by this Agreement on or before
     September 30,2005, (ii) by Purchaser if the board of directors of Clearwire
     does not approve the transactions contemplated by this Agreement at its
     next regularly scheduled board meeting after the date of this Agreement, or
     (iii) by either Purchaser or Seller if (A) there shall be any law or
     regulation that makes consummation of the Transactions illegal or otherwise
     prohibited, or (B) any judgment, injunction, order or decree of any court
     or other Governmental Entity having competent jurisdiction enjoining
     Purchaser and Seller from consummating the Transaction is entered and such
     judgment, injunction or order shall have become final and non-appealable;

          (c) by any Party upon the material breach of any representation,
     warranty or covenant in this Agreement by another Party if such breach is
     not cured within ten (10) days following written notice by the
     non-breaching Party which notice shall describe the breach; or

          (d) by either Purchaser or Seller if the Closing has not occurred on
     or before the first anniversary of the Effective Date, provided that the
     failure to close on or before such date is not the fault of the terminating
     Party.

     Section 7.2 Effect of Termination. In the event of a termination of this
Agreement, neither Party shall have any liability or further obligation to the
other, except that

          (a) Seller's obligation to return the Deposit as set forth in Section
     2.2;

          (b) nothing herein will relieve a Party from liability for any breach
     by such Party of this Agreement; and

          (c) the provisions of this Article 7, Article 8 and Article 9 shall
     survive the termination of this Agreement. Whether or not Closing occurs,
     all costs and expenses incurred in connection with this Agreement and the
     Transactions shall be paid by the Party incurring such expenses.

                         ARTICLE 8 SURVIVAL AND REMEDIES

     Section 8.1 Survival. The representations and warranties contained in this
Agreement, the Instrument of Assignment for License and any certificates given
by one or more Parties to any other Party as an incident to Closing the
Transactions of this Agreement shall survive the Closing until one (1) year
after the Closing Date and shall expire at such

<PAGE>

time. The covenants and other agreements contained in this Agreement which do
not expire by their terms on or before the Closing shall survive the Closing
until the expiration of the applicable statute of limitations (including any
waivers or extensions thereof) with respect to such matters.

     Section 8.2 Seller Indemnification. Seller shall indemnify Purchaser, its
representative members, managers, officers, employees, agents, successors and
assigns (the "Purchaser Indemnified Parties") and hold the Purchaser Indemnified
Parties harmless from and against any and all Damages based upon, attributable
to or resulting from:

          (a) the failure of any representation or warranty of Seller set forth
     in this Agreement, or any representation or warranty contained in any
     certificate delivered by Seller pursuant to this Agreement, to be
     materially true and correct as of the dates made;

          (b) the material breach of any covenant or other agreement on the part
     of Seller under this Agreement; and

          (c) the ownership of the License and the Interference Agreements prior
     to the Closing.

     Section 8.3 Purchaser Indemnification. Purchaser shall indemnify Seller,
and Seller's representative members, managers, officers, employees, agents,
successors and assigns (collectively, the "Seller Indemnified Parties") and hold
the Seller Indemnified Parties harmless from and against any and all Damages
based upon, attributable to or resulting from:

          (a) the failure of any representation or warranty of Purchaser set
     forth in this Agreement, or any representation or warranty contained in any
     certificate delivered by Purchaser or Clearwire pursuant to this Agreement,
     to be materially true and correct as of the dates made;

          (b) the breach of any covenant or other agreement on the part of
     Purchaser under this Agreement; and

          (c) the ownership of the License and the Interference Agreements
     following the Closing.

     Section 8.4 Indemnification Procedures.

          (a) In the event that any claim shall be asserted by any Person in
     respect of which payment may be sought under Section 8.2 or Section 8.3
     hereof (each, a "Claim"), the indemnified party shall reasonably and
     promptly cause written notice of the assertion of any Claim of which it has
     knowledge which is covered by this indemnity to be forwarded to the
     indemnifying party. The indemnifying party shall have the right, at its
     sole option and expense, to be represented by counsel of its choice, which
     must be reasonably satisfactory to the indemnified party, and to defend
     against, negotiate, settle or otherwise deal with any Claim which relates
     to any

<PAGE>

     Damages indemnified against hereunder. If the indemnifying party elects to
     defend against, negotiate, settle or otherwise deal with any Claim which
     relates to any Damages indemnified against hereunder, it shall within five
     (5) days (or sooner, if the nature of the Claim so requires) notify the
     indemnified party of its intent to do so. If the indemnifying party elects
     not to defend against, negotiate, settle or otherwise deal with any Claim
     which relates to any Damages indemnified against hereunder, fails to notify
     the indemnified party of its election as herein provided or contests its
     obligation to indemnify the indemnified party for such Damages under this
     Agreement, the indemnified party may defend against, negotiate, settle or
     otherwise deal with such Claim. If the indemnified party defends any Claim,
     then the indemnifying party shall reimburse the indemnified party for the
     expenses of defending such Claim upon submission of periodic bills. If the
     indemnifying party shall assume the defense of any Claim, the indemnified
     party may participate, at his or its own expense, in the defense of such
     Claim; provided, however, that such indemnified party shall be entitled to
     participate in any such defense with separate counsel at the expense of the
     indemnifying party if (i) so requested by the indemnifying party to
     participate or (ii) in the reasonable opinion of counsel to the indemnified
     party, a conflict or potential conflict exists between the indemnified
     party and the indemnifying party that would make such separate
     representation advisable; and provided, further, that the indemnifying
     party shall not be required to pay for more than one such counsel for all
     indemnified parties in connection with any Claim. The Parties hereto agree
     to cooperate fully with each other in connection with the defense,
     negotiation, or settlement of any such Claim. The indemnifying party shall
     not, without the express written consent of the indemnified party, settle
     or compromise any Claim, or consent to the entry of any judgment against
     the indemnified party that does include an unconditional term thereof
     giving the indemnified party a full and complete release from all liability
     with respect to such Claim.

          (b) After any final judgment or award shall have been rendered by a
     court, arbitration board or administrative agency of competent jurisdiction
     and the expiration of the time in which to appeal therefrom, or a
     settlement shall have been consummated, or the indemnified party and the
     indemnifying party shall have arrived at a mutually binding agreement with
     respect to a Claim hereunder, the indemnified party shall forward to the
     indemnifying party notice of any sums due and owing by the indemnifying
     party pursuant to this Agreement with respect to such matter.

          (c) The failure of the indemnified party to give reasonably prompt
     notice of any Claim shall not release, waive or otherwise affect the
     indemnifying party's obligations with respect thereto except to the extent
     that the indemnifying party can demonstrate actual loss and prejudice as a
     result of such failure.

          (d) Notwithstanding anything to the contrary in this Article 8 or
     elsewhere in this Agreement, no Party shall be required to indemnify or
     hold any other Party harmless under this Agreement or any certificates,
     documents, agreements and instruments delivered pursuant to the terms of
     this Agreement unless such right to indemnification or to be held harmless
     is asserted by written notice from indemnified

<PAGE>

     Party or Parties to the indemnifying Party or Parties received within
     twelve (12) months of the Closing Date describing with specificity the
     facts giving rise to the asserted right. In no event shall Damages
     collected by any one or more of Purchaser and Clearwire against Seller
     exceed the amount of the Purchase Price. In no event shall Damages
     collected by Seller against Purchaser and/or Clearwire exceed the amount of
     the Purchase Price.

     Section 8.5 Remedies. IN NO EVENT SHALL ANY PARTY BE LIABLE FOR INDIRECT,
SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES ARISING OUT OF A BREACH OF THIS
AGREEMENT, EVEN IF ADVISED AT THE TIME OF BREACH OF THE POSSIBILITY OF SUCH
DAMAGES, PROVIDED, HOWEVER, THAT THIS LIMITATION SHALL NOT APPLY TO THE RIGHT OF
INDEMNIFICATION BY A PARTY UNDER SECTIONS 8.2 AND 8.3 HEREOF FOR SUCH TYPES OF
DAMAGES UNDER A CLAIM MADE BY A THIRD-PARTY.

                             ARTICLE 9 MISCELLANEOUS

     Section 9.1 Entire Agreement. This Agreement constitutes the entire
agreement between the Parties pertaining to the subject matter hereof and
thereof and supersedes all prior and contemporaneous agreements, understandings,
negotiations and discussions, whether oral or written, of the Parties with
respect to the subject matter hereof and thereof, except with regard to the
Letter Agreement, dated September 16,2004, referenced in Section 5.4 above.

     Section 9.2 Amendments and Waivers. Any provision of this Agreement may be
amended or waived if, and only if, such amendment or waiver is in writing and
signed (in the case of an amendment) by Seller and Purchaser or (in the case of
a waiver) by the Party against whom the waiver is to be effective. No failure or
delay by any Party in exercising any right, power or privilege hereunder shall
operate as a waiver thereof nor shall any single or partial exercise thereof
preclude any other or further exercise thereof or the exercise of any other
right, power or privilege.

     Section 9.3 Remedies Cumulative. Except as otherwise provided herein, all
rights, powers and remedies provided under this Agreement or otherwise available
in respect hereof at law or in equity shall be cumulative and not alternative,
and the exercise or beginning of the exercise of any thereof by a Party shall
not preclude the simultaneous or later exercise of any other such right, power
or remedy by such Party.

     Section 9.4 Assignment. This Agreement shall be binding upon and shall
inure to the benefit of the Parties and their respective successors and
permitted assigns. This Agreement may not be assigned by any Party without the
prior written consent of the other Party; provided, however, that Purchaser may,
at any time prior to the Closing, assign this Agreement or Purchaser's right to
receive assignment of the License without the consent of Seller, but subject, in
all circumstances, to the limitations set forth in Section 5.7 above, and
further provided that Purchaser and Clearwire shall not be released from any
obligations hereunder as a result of such assignment.

<PAGE>

     Section 9.5 Notices. All notices or other communications hereunder shall be
in writing and shall be deemed to have been duly given or made (i) upon dehvery
if delivered personally (by courier, overnight delivery service or otherwise),
as evidenced by written receipt or other written proof of delivery (which may be
a printout of the tracking information of a courier or overnight dehvery service
that made such delivery) or (ii) upon delivery if sent by United States Postal
Service certified mail, return receipt requested, as evidenced by the written
receipt of delivery to the applicable addresses set forth below (or such other
address which any Party may from time to time specify):

          If to Seller:

          St. LouE, LLC
          201 Fletcher Avenue
          Sarasota, FL 34237
          Attention: L. Robert du Treil, Sr.
          Facsimile: (941) 329-6030

          With a copy (which shall not constitute notice) to:

          Fletcher, Heald & Hildreth PLC
          1300 N. 17th Street, 11th Floor
          Arlington, VA 22209
          Attention: Donald Evans, Esq.
          Facsimile: (703) 812-0486

          If to Purchaser:

          Clearwire Spectrum Holdings LLC
          5808 Lake Washington Blvd. N.E.
          Suite 300
          Kirkland,WA 98033
          Attention: Benjamin G. Wolff
          Facsimile: (425) 828-8061

          With a copy to:

          Davis Wright Tremaine LLP
          2600 Century Square
          1501 Fourth Avenue
          Seattle, WA 98101
          Attention: Julie Weston
          Facsimile: (206) 628-7699

          If to Clearwire:

<PAGE>

          Clearwire Corporation
          5808 Lake Washington Blvd. N.E.
          Suite 300
          Kirkland, WA 98033
          Attention: Benjamin G. Wolff
          Facsimile: (425) 828-8061

          With a copy to:

          Davis Wright Tremaine LLP
          2600 Century Square
          1501 Fourth Avenue
          Seattle, WA 98101
          Attention: Julie Weston
          Facsimile: (206) 628-7699

     Section 9.6 Governing Law; Waiver of Jury Trial.

          (a) This Agreement shall be governed by, and construed in accordance
     with, the internal laws of the State of Washington, without reference to
     the choice of law principles thereof.

          (b) THE PARTIES HEREBY IRREVOCABLY WAIVE ANY AND ALL RIGHT TO TRIAL BY
     JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATED TO THIS AGREEMENT OR
     THE TRANSACTIONS.

     Section 9.7 Expenses. Except as otherwise expressly provided in this
Agreement, whether or not the Transactions are consummated, the Parties shall
bear their respective expenses (including, but not limited to, all compensation
and expenses of counsel, financial advisors, consultants, actuaries and
independent accountants) incurred in connection with this Agreement and the
Transactions. All filing fees required to be paid to any Governmental Authority
in connection with satisfying the conditions set forth in Section 5.7 will be
borne by Purchaser.

     Section 9.8 Invalidity. In the event that any of the provisions contained
in this Agreement or in any other instrument referred to herein, shall for any
reason be held to be invalid, illegal or unenforceable in any respect, such
invalidity, illegality or unenforceability shall not affect any other provision
of this Agreement or such other instrument and such provision will be
ineffective only to the extent of such invalidity, illegality or
unenforceability, unless the consummation of the Transactions is impaired
thereby.

<PAGE>

     Section 9.9 Counterparts. This Agreement may be executed and delivered
(including by facsimile transmission) in one or more counterparts, each of which
shall be deemed an original, but all of which together shall constitute one and
the same instrument.

     Section 9.10 Headings. The headings of the Articles and Sections herein are
inserted for convenience of reference only and are not intended to be a part of
or to affect the meaning or interpretation of this Agreement.

                            [SIGNATURE PAGE FOLLOWS]

<PAGE>

     IN WITNESS WHEREOF, the Parties have duly executed this Agreement as of the
date first above written.

                                        ST. LOUE, LLC

                                        By: /s/ L. Robert du Treil Sr.
                                            ------------------------------------
                                        Name: L. Robert du Treil, Sr.
                                        Title: Sole Member

                                        CLEARWIRE CORPORATION

                                        By: /s/ Benjamin G. Wolf
                                            ------------------------------------
                                        Name: Benjamin G. Wolf
                                        Title: Executive Vice-President

                                        CLEARWIRE LLC SPECTRUM HOLDINGS LLC

                                        By: /s/ Benjamin G. Wolf
                                            ------------------------------------
                                        Name: Benjamin G. Wolf
                                        Title: Executive Vice-President

<PAGE>

                                    EXHIBIT A
                                     LICENSE

                          [INSERT COPY OF LICENSE HERE]

                                    Exhibit A

<PAGE>

                                    EXHIBIT B

                            INSTRUMENT OF ASSIGNMENT

     INSTRUMENT OF ASSIGNMENT (the "Instrument of Assignment"), dated as of
______________________, 2005, by and between St. LouE, LLC, a Delaware limited
liability company ("Assignor"), and Clearwire Spectrum Holdings LLC, a Nevada
limited liability company ("Assignee"). Capitalized terms used herein without
definition shall have the respective meanings assigned to them in the Purchase
Agreement (as defined below).

     WHEREAS, Assignor and Assignee have entered into a Purchase Agreement (the
"Purchase Agreement"), dated as of September 9, 2005, pursuant to which,
Assignor agreed to convey to Assignee, and Assignee agreed to acquire, the
License ***

     WHEREAS, Assignor and Assignee have filed an application with the FCC
requesting the assignment of the certain license to Assignee; and

     WHEREAS, the FCC has granted an application for the assignment of the
License to Assignee;

     NOW, THEREFORE, in consideration of the promises and the mutual
representations, warranties, covenants, conditions, and agreements hereinafter
set forth, the Parties agree as follows:

          1. Assignment. Pursuant to Section 2 of the Purchase Agreement, for
     valuable consideration, receipt of which is hereby acknowledged, Assignor,
     intending to be legally bound, does hereby sell, assign, transfer, convey,
     and deliver to Assignee, its successors and assigns forever, all right and
     interest of Assignor in and to the License and the Interference Agreements,
     free and clear of all Liens.

          2. Terms of Purchase Agreement Control. Nothing contained in this
     Instrument of Assignment shall in any way supersede, modify, replace,
     amend, change, rescind, waive, exceed, expand, enlarge, or in any way
     affect the provisions of the Purchase Agreement, including the warranties,
     covenants, agreements, conditions and representations contained in the
     Purchase Agreement and, in general, any of the rights and remedies, and any
     of the obligations and indemnifications, of Assignor or Assignee set forth
     in the Purchase Agreement. Without limiting the generality of the
     foregoing, this instrument is subject to the limitations of liability in
     Article 8 and, particularly, Section 8.4(d).

          3. Miscellaneous. This Instrument of Assignment (a) is executed
     pursuant to the Purchase Agreement and may be executed in counterparts,
     each of which as so executed shall be deemed to be an original, but all of
     which together shall constitute one instrument, (b) shall be governed by
     and in accordance with the internal laws of the State of Washington,
     without regard to the principles of conflicts of law thereof and (c) shall
     be binding upon and inure to the benefit of the Parties hereto and their
     respective successors and permitted assigns.

                                  Exhibit B - 1

<PAGE>

     IN WITNESS WHEREOF, Assignor and Assignee have each caused this Instrument
of Assignment to be duly executed and delivered as of the date first above
written.

                                        ST. LOUE, LLC

                                        By:
                                            ------------------------------------
                                        Name: L. Robert du Treil, Sr.
                                        Title: Sole Member

                                        CLEARWIRE SPECTRUM HOLDINGS
                                        LLC

                                        By:
                                             -----------------------------------
                                        Name: Benjamin G. Wolff
                                        Title: Executive Vice-President

                                  Exhibit B - 2

<PAGE>

                                    EXHIBIT C

             JOINDER TO AMENDED AND RESTATED STOCKHOLDERS AGREEMENT

                                    Exhibit C

<PAGE>

                        JOINDER IN STOCKHOLDERS AGREEMENT

     This Joinder in Stockholders Agreement ("Joinder") is made and entered into
this ____________________ day of ______________, 2005, by and between Clearwire
Corporation, a Delaware corporation (the "Company"), and the party whose
signature appears below (the "Joining Party").

                                    RECITALS:

WHEREAS, the Joining Party has acquired or intends to acquire shares of capital
stock of the Company; and

WHEREAS, pursuant to Section 13.09 of that certain Amended and Restated
Stockholders Agreement, between the Company and its stockholders, dated as of
March 16, 2004 (the "Stockholders Agreement"), the Joining Party may become a
party to the Stockholders Agreement by execution of an instrument such as this
Joinder.

NOW, THEREFORE, the Joining Party agrees as follows:

1.   JOINDER

     By execution of this Joinder by the Joining Party and acceptance hereof by
the Company, the Joining Party is and agrees to become a party to, subject to
all the conditions, restrictions, obligations and duties of a Stockholder of the
Company under the Stockholders Agreement, including the restrictions on transfer
of the shares acquired from the Company and the requirement that the Joining
Party vote its shares in accordance with the terms thereof.

2.   AGREEMENT TO BE BOUND BY AGREEMENT

     This Joinder shall in all respects, including all matters of construction,
validity and performance, be governed by, and construed and enforced in
accordance with, the laws of the State of Delaware, without reference to any
rules governing conflicts of laws.

3.   COUNTERPARTS

     This Joinder may be executed in any number of counterparts, each of which
shall be an original, but all of which together shall constitute one instrument.

COMPANY:                                JOINING PARTY:

By:                                     By:
    ---------------------------------       ------------------------------------
Name:                                   Name:
     --------------------------------         ----------------------------------
Title:                                  Title:
       ------------------------------          ---------------------------------
Date:                                   Date:
      -------------------------------         ----------------------------------

                                       1

<PAGE>

                                    EXHIBIT D
                           STOCKHOLDER QUESTIONNAIRE

                                    Exhibit D

<PAGE>

                                (CLEARWIRE LOGO)

                      INVESTOR QUALIFICATION QUESTIONNAIRE

Name of Investor:__________

     The purpose of this Investor Qualification Questionnaire ("Questionnaire")
is to assist Clearwire Corporation, a Delaware corporation (the "Company"), in
determining that the offer and sale of the Company's securities (the
"Securities") to the undersigned prospective investor (the "Investor") is exempt
from registration under applicable federal and state securities laws. This
Questionnaire is not a subscription agreement and satisfaction of the criteria
provided herein (i) does not obligate the Company to accept any subscription by
the Investor in the Securities; and (ii) does not mean that the Securities are
an appropriate investment for the Investor.

     ALL INFORMATION CONTAINED IN THIS QUESTIONNAIRE IS TO BE TREATED
CONFIDENTIALLY. All information that the undersigned furnishes hereunder is for
the sole use of the Company and counsel or other professional advisors to the
Company and will be held in confidence, except that this Questionnaire may be
furnished to such parties as the Company and its counsel may deem desirable to
establish compliance with federal or any applicable state securities laws.

INSTRUCTIONS

1.   All prospective investors of the Company must complete Part I of this
     questionnaire.

2.   To participate in the offering of the Securities, prospective investors
     must qualify as "accredited investors" as such term is defined in Rule
     501(a) of Regulation D of the Securities Act of 1933, as amended (the
     "Act"). Part II sets forth several ways for a purchaser to qualify as an
     accredited investor. Each prospective investor must carefully read and
     initial the applicable line on Part II, if any.

3.   All prospective investors must carefully read and sign Part III where
     indicated.

Any questions about this questionnaire should be raised with Ben Wolff, the
Company's Executive Vice President of Corporate Affairs, at (425) 828-8600.

Page 1 - INVESTOR QUALIFICATION QUESTIONNAIRE

<PAGE>

                         PART I - BACKGROUND INFORMATION

Full Name (No Initials) ________________________________________________________

State of Residence:____________________ U.S. citizen?  [ ] Yes   [ ] N0

Soc Sec # / Employer ID #: ____________ Home Tel:_______________________________

________________________________________________________________________________
Home Address (P.O. Box NOT acceptable)      City          State            Zip

Email address:____________________________________

POTENTIAL INVESTORS WHO ARE ENTITY INVESTORS SHOULD COMPLETE THE FOLLOWING:

Type of Entity (check one):  [ ] Corporation   [ ] Partnership

                             [ ] Trust         [ ] Limited Liability Company

                             [ ] Other _________________________

________________________________________________________________________________
Entity Name

________________________________________________________________________________
Business Purpose

_____________________________________   ________________________________________
Year Formed                             Place of Organization

________________________________________________________________________________
Name of individual making investment decisions

FOR ALL ENTITIES: Please attach (1) a copy of the Articles of Incorporation,
Bylaws, Company Agreement, or Trust Instrument; and (2) a document showing that
the individual signing the subscription agreement is authorized to take such
action on behalf of the entity.

Page 2 - INVESTOR QUALIFICATION QUESTIONNAIRE

<PAGE>

THE FOLLOWING SHOULD BE COMPLETED BY POTENTIAL INVESTORS WHO ARE INDIVIDUALS.

Employment Information:

________________________________________________________________________________
Employer/Company Name               Occupation                      Business Tel

Length of employment in current position _________________

________________________________________________________________________________
Business Address (P.O. Box unacceptable)   City         State            Zip

________________________________________________________________________________
Nature of employer's business

If you have had more than one job in the last five years, give the following
information with respect to each job:

<TABLE>
<CAPTION>
Employer   Nature of Business   Position
--------   ------------------   --------
<S>        <C>                  <C>
________   __________________   ________
________   __________________   ________
________   __________________   ________
________   __________________   ________
________   __________________   ________
</TABLE>

Describe any other business connections reflecting knowledge and experience of
financial matters (service on boards of directors, professional licenses, etc.):
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________

Indicate educational background:

<TABLE>
<CAPTION>
Schools Attended   Degree(s)   Year(s)
----------------   ---------   -------
<S>                <C>         <C>
________________   _________   _______
________________   _________   _______
________________   _________   _______
________________   _________   _______
</TABLE>

Page 3 - INVESTOR QUALIFICATION QUESTIONNAIRE

<PAGE>

                    PART II - ACCREDITED INVESTOR INFORMATION

ITEM A: Accredited individual investors must initial one or more of the
        following statements:

_____   The undersigned hereby certifies that he or she has individual income in
        excess of $200,000 U.S. dollars or joint income with a spouse in excess
        of $300,000 in each of the two most recent years, and the undersigned
        has a reasonable expectation of reaching the same income level in the
        current year.

_____   The undersigned hereby certifies that he or she has an individual net
        worth, or joint net worth with his or her spouse, in excess of
        $1,000,000.

ITEM B: Accredited entity investors must initial one or more of the following
        statements:

_____   The undersigned entity hereby certifies that it is an accredited
        investor because it has total assets in excess of $5,000,000 and was not
        formed for the specific purpose of investing in the Company.

_____   The undersigned entity hereby certifies that it is an accredited
        investor because each of its equity owners are accredited investors as a
        result of either (i) his or her net worth equals or exceeds $1,000,000,
        or (ii) his or her annual net income equals or exceeds $200,000
        individually, or $300,000 jointly with his or her spouse. If the
        undersigned initialed this statement and did not initial the preceding
        statement, please list below the names of all equity owners and the
        manner in which they qualify as accredited investors (initial
        appropriate categories). Each equity owner must also complete Parts I,
        II and III of this questionnaire and sign a signature page hereof

<TABLE>
<CAPTION>
                                                                       Income exceeds
                     Name of                        Net Worth       $200,000 (individually)
               All Equity Owners               Exceeds $1,000,000    or $300,000 (jointly)
               -----------------               ------------------   -----------------------
<S>                                            <C>                  <C>
____________________________________________         [__]                     [__]
____________________________________________         [__]                     [__]
____________________________________________         [__]                     [__]
____________________________________________         [__]                     [__]
</TABLE>

(Attach additional sheet(s) if necessary)

Page 4 - INVESTOR QUALIFICATION QUESTIONNAIRE

<PAGE>

                            PART III - CERTIFICATION

By signing this Questionnaire, the undersigned hereby certifies and warrants as
follows:

1.   The undersigned understands that the representations contained on this page
     are made for the purpose of qualifying the undersigned as an investor in
     this offering under applicable rules and regulations of the Securities and
     Exchange Commission for the purpose of inducing a sale of securities to the
     undersigned. The undersigned hereby represents that the statement or
     statements initialed or otherwise made above are true, correct and complete
     in all respects. The undersigned understands that a false representation
     may constitute a violation of law, and that any person who suffers damage
     as a result of a false representation may have a claim against the
     undersigned for damages; and

2.   The undersigned is not now, and does not contemplate that he, she, or it
     will be, required to dispose of the Securities to satisfy any existing or
     expected undertaking of indebtedness.

3.   The undersigned is able to bear the economic risk of an investment in the
     Securities as well as the restriction on his, her or its ability to sell or
     transfer the Securities for an indefinite period of time because they will
     not be registered under the Act or applicable state securities laws, and
     therefore cannot be sold, transferred, pledged or otherwise disposed of or
     encumbered unless subsequently registered pursuant to the Act or an
     exemption from such registration is available.

4.   The undersigned understands that this Questionnaire is not an offer to sell
     or a sale of any Securities. This questionnaire is required to ensure that
     the offering of the Company's securities comply with the United States
     securities laws and regulations on private placements and investment
     advisory services; and

5.   The undersigned realizes that the Company is relying on the representations
     made above in offering and selling the Securities to the undersigned, and
     hereby certifies and affirms the truth and complete accuracy of these
     representations.

Dated:
       ------------------------------

(Signature for Individual Investor)

------------------------------------    ----------------------------------------
Print or Type Name of Investor          Signature of Investor

(Signature for Corporate,
Partnership, Trust or other Entity
Investor)

-------------------------------------   By
(Print Name of Entity)                     -------------------------------------
                                        Print Name:
                                                    ----------------------------
                                        Title:
                                               ---------------------------------

Page 5 - INVESTOR QUALIFICATION QUESTIONNAIRE

<PAGE>

                                    EXHIBIT E
                            INTERFERENCE AGREEMENTS

1. Interference Avoidance Agreement, executed in 1995, by and among Silex R-l
School District, Gasconade County R-l School District, Wellsville-Middletown R-l
School District, Warren County R-3 School District, Van-Far R-l School District,
RuralVision Central, Inc., Heartland Wireless Communications, Inc., St. Louis
Regional Educational & Public Television Commission, HITEC, Inc., St. Louis
Community College, Instructional Opportunities, Inc., Louis R. du Treil,
Baypoint TV, Inc., Missouri Baptist College, ITFS, Inc., Cooperating School
Districts of St. Louis Suburban Area, St. Louis Police Department, Alda
Multichannels, Ltd., Westinghouse Broadcasting Co., Inc. and People's Choice TV
Corp.

2. Interference Avoidance Agreement, executed in 1995, by and among St. Louis
Regional Educational & Public Television Commission, HITEC, Inc., St. Louis
Community College, Instructional Opportunities, Inc., Louis R. du Treil,
Baypoint TV, Inc., Missouri Baptist College, ITFS, Inc., Cooperating School
Districts of St. Louis Suburban Area, St. Louis Police Department, Alda
Multichannels, Ltd., Westinghouse Broadcasting Co., Inc., People's Choice TV
Corp., Christian Fellowship School, De Soto Consolidated School District,
Nashville Community School District #9, Waltonville Community Unit #1,
Sesser-Valier Community #196 and Heartland Wireless Communications, Inc.

3. Interference Avoidance Agreement, executed in 1995, by and among Brownstown
Community Unit School District #201, Patoka Community Unit School District #100,
Altamont Community Unit School District #10, Mulberry Grove Community Unit
School District, Salem Community High School, Heartland Wireless Communications,
Inc., St. Louis Regional Educational & Public Television Commission, HITEC,
Inc., St. Louis Community College, Instructional Opportunities, Inc., Louis R.
du Treil, Baypoint TV, Inc., Missouri Baptist College, ITFS, Inc., Cooperating
School Districts of St. Louis Suburban Area, St. Louis Police Department, Alda
Multichannels, Ltd., Westinghouse Broadcasting Co. Inc., and People's Choice TV
Corp.

4. Interference Avoidance Agreement, executed in 1995, by and among Odin High
School, KasKaskia Cikkege District, Webber Township High School District #204,
Mt. Vernon Township High School District #201, South Central County Unit School
District #401, North Wayne County Unit School District #200, Southern Illinois
Wireless Cable Company, Salem Mobile & Modular Home Sales, Norris
City-Omaha-Enfield County Unit School District #3, Lawrence Williams, Heartland
Wireless Communications, Inc., St. Louis Regional Educational & Public
Television Commission, HITEC, Inc., St. Louis Community College, Instructional
Opportunities, Inc., Louis R. du Treil, Baypoint TV, Inc., Missouri Baptist
College, ITFS, Inc. Cooperating School Districts of St. Louis Suburban Area, St.
Louis Police Department, Alda Multichannels, Ltd., Westinghouse Broadcasting
Co., Inc. and People's Choice TV Corp.

5. Interference Agreement, dated ______________________, by and between Baypoint
St. Louis, LLC, and St. LouE, LLC.

                                   Exhibit E

<PAGE>

                                    EXHIBIT F
                    JOINDER TO REGISTRATION RIGHTS AGREEMENT

Exhibit

<PAGE>

                                     JOINDER

     In consideration of the permitted issuance, sale, pledge, or other transfer
to the undersigned of Registrable Securities in the Company, the undersigned
hereby consents and agrees to become a party to and be bound by the Registration
Rights Agreement dated as of the 16th day of March, 2004, as amended, receipt of
a copy of which is hereby acknowledged, as fully as if the undersigned were one
of its original parties, and all of the Registrable Securities owned by the
undersigned will be held in accordance with and restricted by the terms of such
Registration Rights Agreement.

     Dated:
            -------------------------

                   Name of Stockholder:
                                        ----------------------------------------

                   Sign Name:
                                        ----------------------------------------
                   Print Name:
                                        ----------------------------------------
                   Address:
                                        ----------------------------------------

                                        ----------------------------------------

                                        ----------------------------------------
                   SSN/EIN:
                                        ----------------------------------------

     Approved by the Company:

                   COMPANY:             CLEAR WIRE CORPORATION

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------
                                        Dated:
                                               ---------------------------------

                                        1

<PAGE>

                                    EXHIBIT G
                    SIDE LETTER REGARDING REGISTRATION RIGHTS

<PAGE>

                             [Clearwire Letterhead]

MMDS Ft. Myers, Inc.

[Name]
[Address]

Re: Market Standoff Agreement

Dear [Name]: ___________________

Reference is made to that certain Purchase Agreement (the "Purchase Agreement"),
dated September __, 2005, between [_________________________] ("Seller") and
Clearwire Spectrum Holdings LLC. The Purchase Agreement provides that, at the
Closing (as defined in the Purchase Agreement), Seller will become a party to
that Registration Rights Agreement, dated as of March 16, 2004, between
Clearwire Corporation ("Clearwire") and certain holders of Clearwire's Class A
Common Stock (the "Registration Rights Agreement"). As a condition to entering
into the Registration Rights Agreement, Clearwire has agreed to deliver this
side letter to Seller.

Clearwire agrees that it will not impose any selling and/or other transfer
restrictions under Section 9 of the Registration Rights Agreement on Seller
unless, and to the extent that, Clearwire is requested to impose such
restrictions on its stockholders by an underwriter of capital stock or other
securities of Clearwire in connection with Clearwire's initial public offering.
The foregoing shall not modify Seller's obligation under Section 9 of the
Registration Rights Agreement to execute a separate agreement agreeing to be
bound by such restrictions if requested to do so by such underwriter(s) or
Clearwire's ability to impose stop-transfer instructions with respect to any
shares subject to such restrictions.

Sincerely,

Clearwire Corporation

Benjamin G. Wolff, Executive Vice President

Accepted and agreed:

[______________________]

By:
    --------------------------------
Name:
      ------------------------------
Title:
       -----------------------------

Date:
      ------------------------------<PAGE>

                                                                   Exhibit 10.43

                                                                  EXECUTION COPY

================================================================================

                            STOCK PURCHASE AGREEMENT

                                     between

                    THE SHAREHOLDERS OF WINBEAM, INCORPORATED

                                       and

                         CLEARWIRE SPECTRUM HOLDINGS LLC

                          Dated as of November 7, 2005

================================================================================

<PAGE>

                                TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
ARTICLE 1 DEFINITIONS ...................................................    1

ARTICLE 2 PURCHASE AND SALE OF SHARES ...................................    6

ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF SELLERS .....................    8

ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF PURCHASER ...................   21

ARTICLE 5 COVENANTS AND OTHER AGREEMENTS ................................   22

ARTICLE 6 CONDITIONS TO CLOSING .........................................   27

ARTICLE 7 TERMINATION ...................................................   29

ARTICLE 8 SURVIVAL AND REMEDIES .........................................   30

ARTICLE 9 MISCELLANEOUS .................................................   34
</TABLE>

                                        i

<PAGE>

                            STOCK PURCHASE AGREEMENT

     This STOCK PURCHASE AGREEMENT, dated as of November 7, 2005 (the "Effective
Date"), is among the individuals who signatures appear as Shareholders on the
signature pages attached hereto (each a "Seller" and collectively the
"Sellers"), and Clearwire Spectrum Holdings LLC, a Nevada limited liability
company ("Purchaser"). Sellers and Purchaser may be referred to herein as
"Parties" or each a "Party".

     A. Sellers collectively own 2,182,300 shares of common stock, $1.00 par
value per share (the "Common Stock") of WinBeam, Incorporated, a Pennsylvania
corporation (the "Company"), which constitute 100% of the issued and outstanding
shares of capital stock of the Company as of the Effective Date, and John W.
Bunce intends to exercise options to acquire an additional 84, 812 shares of
Common Stock immediately prior to the sale contemplated hereby (which shares,
upon issuance, together with the shares already owned by the Sellers, shall be
collectively the "Shares").

     B. Sellers desire to sell to Purchaser, and Purchaser desires to purchase
from Sellers, the Shares for the purchase price and upon the terms and
conditions hereinafter set forth on the terms and subject to the conditions set
forth in this Agreement.

     NOW, THEREFORE, in consideration of the premises and the mutual
representations, warranties, covenants, conditions and agreements hereinafter
set forth, the Parties agree as follows:

                                    ARTICLE 1
                                   DEFINITIONS

     As used in this Agreement, the following terms shall have the meanings set
forth or referenced below:

     "Accredited Investor" means as this term is defined in Rule 501(a) of
Regulation D as promulgated by the U.S. Securities and Exchange Commission under
the Securities Act.

     "Affiliate" means, with respect to any Person, any other Person that,
directly or indirectly, alone or through one or more intermediaries, controls,
is controlled by or is under common control with that Person. For purposes of
this definition, "control" (including the terms "controlling" and "controlled")
means the power to direct or cause the direction of the management and policies
of a Person, directly or indirectly, whether through the ownership of securities
or partnership or other ownership interests, by contract or otherwise.

     "Agreement" means this Purchase Agreement and all Exhibits and Schedules
hereto, as amended, supplemented or otherwise modified from time to time in
accordance with the terms hereof.

     "Assets" means the assets related to the business of the Company and its
Subsidiaries including inventory, equipment, accounts receivable, leasehold
interests in leased equipment

                                       1

<PAGE>

                                                                  EXECUTION COPY

and leased real property, Personal Property Intellectual Property Rights,
Leases, Company Licenses, Contracts.

     "Benefit Plan" is defined in Section 3.16.

     "BRS" means Broadband Radio Service, formerly known as MMDS.

     "BTA Purchase Agreement" means that certain purchase agreement between the
Company and Communications Ventures, Inc. dated as of May 17, 2000 for the
purchase by the Company of the Oil City, Indiana and Dubois, Pennsylvania BTA
licenses.

     "Business Day" means any day, other than a Saturday or Sunday, on which
commercial banks and foreign exchange markets are open for business in Seattle,
Washington.

     "Channels" means the channels for EBS and BRS licensed under a License.

     "Claim" is defined in Section 8.5(a).

     "Clearwire" means Clearwire Corporation, a Delaware corporation, and the
parent of Purchaser.

     "Clearwire Stock" is defined in Section 2.3.

     "Closing" is defined in Section 2.4.

     "Closing Date" is defined in Section 2.4.

     "Company" is defined in Recital A.

     "Company License" is defined in Section 3.8.

     "Common Stock" is defined in Recital A.

     "Company Material Adverse Effect" means any material adverse change having,
or any event or condition which has had, or could reasonably be expected to
have, a material adverse effect on the ability on the business, operations,
Assets, condition (financial or other) or results of operations of the Company
taken as a whole.

     "Confidential Information" means any and all information regarding the
business, finances, operations, products, services and customers of the
Purchaser specified and its Affiliates, in written or oral form or in any other
medium.

     "Consents" means all consents and approvals of Governmental Authorities or
other third parties necessary to authorize, approve or permit the Parties hereto
to consummate the Transactions.

     "Contract" is defined in Section 3.11.

                                       2

<PAGE>

     "Current Clearwire Price" shall be defined as $5.00 per share of Clearwire
Stock, adjusted, as necessary, to account for any stock split, cash dividend,
stock dividend, or other distribution or recapitalization in respect of
Clearwire's issued and outstanding stock between the Effective Date and the
Closing.

     "Damages" means any and all losses, claims, demands, liabilities,
obligations, actions, suits, orders, statutory or regulatory compliance
requirements, or proceedings asserted by any Person, and all damages, costs,
expenses, assessments, judgments, recoveries and deficiencies, including
interest, penalties, investigatory expenses, consultants' fees, and reasonable
attorneys' fees and costs, of every kind and description, contingent or
otherwise.

     "Debt Payment" is defined in Section 2.3.

     "Disclosure Memorandum" means that certain Disclosure Memorandum of
Clearwire dated September 22, 2005.

     "Down Payment Advance" is defined in Section 2.1.

     "EBS" means Educational Broadband Radio Service, formerly known as ITFS.

     "Effective Date" is defined in the preamble.

     "Employee" is defined in Section 3.16.

     "Environmental Laws" is defined in Section 3.18.

     "ERISA" is defined in Section 3.16.

     "Exchange Act" is defined in Section 3.20.

     "FCC" means the Federal Communications Commission or any successor agency
thereof.

     "FCC Rules" means Title 47 of the Code of Federal Regulations, as amended
at any time and from time to time, and FCC decisions, policies, reports and
orders issued pursuant to the adoption of such regulations.

     "Final Order" means an action or decision of the FCC as to which (i) no
request for a stay or similar request is pending, no stay is in effect, the
action or decision has not been vacated, reversed, set aside, annulled or
suspended and any deadline for filing such request that may be designated by
statute or regulation has passed, (ii) no petition for rehearing or
reconsideration or application for review is pending and the time for the filing
of any such petition or application has passed, (iii) the FCC does not have the
action or decision under reconsideration on its own motion and the time within
which it may effect such reconsideration has passed, and (iv) no appeal is
pending including other administrative or judicial review, or in effect and any
deadline for filing any such appeal that may be designated by statute or rule
has passed.

                                       3

<PAGE>

     "Financial Statement" is defined in Section 3.7.

     "Governmental Authority" means a Federal, state or local court,
legislature, governmental agency (including the United States Department of
Justice), commission or regulatory or administrative authority or
instrumentality.

     "Hazardous Substances" is defined in Section 3.18.

     "HMO" is defined in Section 3.16.

     "Holdback Amount" means One Million Five Hundred Thousand Dollars
($1,500,000) in cash.

     "Holdback Period" means the period commencing on the Closing Date and
ending on twelve months from the Closing Date.

     "Intellectual Property Rights" is defined in Section 3.14.

     "Law" means applicable common law and any statute, ordinance, code or other
law, rule, permit, permit condition, regulation, order, decree, technical or
other standard, requirement or procedure enacted, adopted, promulgated, applied
or followed by any Governmental Authority.

     "Legal Proceeding" shall mean any action, suit, litigation, arbitration
proceeding (including any civil, criminal, administrative, investigative or
appellate proceeding), hearing, inquiry, audit, examination or investigation
commenced, brought, conducted or heard by or before, or otherwise involving any
court or other Governmental Body or any arbitrator or arbitration panel.

     "Leased Real Property" is defined in Section 3.10.

     "Leases" means the interest held by the Company to use spectrum granted to
the holder of an Underlying FCC License for EBS or BRS.

     "Lessor" means the applicable lessor under a Lease.

     "Licenses" is defined in Section 3.8.

     "Lien" means, with respect to any asset, any mortgage, lien, pledge,
charge, security interest, right of first refusal or right of others therein, or
encumbrance of any nature whatsoever in respect of such asset.

     "Party" or "Parties" is defined in the preamble.

     "Permits" is defined in Section 3.19.

     "Person" means any general partnership, limited partnership, limited
liability company, corporation, joint venture, trust, business trust,
Governmental Authority,

                                       4

<PAGE>

cooperative, association, other entity, or individual, and the heirs, executors,
administrators, legal representatives, successors, and assigns of such person as
the context may require.

     "Personal Property" is defined in Section 3.10.

     "Pre-Closing Tax Period" means any taxable period ending on or before the
Closing Date and the portion of the taxable period that includes (but does not
end on) the Closing Date.

     "Purchase Price" is defined in Section 2.3.

     "Purchaser" is defined in the preamble.

     "Purchaser Indemnified Parties" is defined in Section 8.2.

     "Real Estate Leases" is defined in Section 3.10.

     "Restricted Business" means the use of licenses authorized by the FCC in
the EBS or BRS radio services under Part 27 of the FCC Rules for the provision
of digital, one-way or two-way, fixed, temporary-fixed, mobile or portable
Internet access, data, video, voice, or telephony services which are deployed
using single cell technology, multi-cell technology, web architectures, or any
other uses or technologies Purchaser may choose or the FCC may now or hereafter
permit for EBS and BRS services.

     "Securities Act" means the Securities Act of 1933, as amended.

     "Sellers" is defined in the preamble.

     "Seller Indemnified Parties" is defined in Section 8.3.

     "Sellers' Knowledge" shall mean Sellers' best actual knowledge after
reasonable and due inquiry of Company's officers, directors and key employees,
including, without limitation, Mark Schoeppner, Jeff Rex, John Bunce and
Jennifer Fabry on such matter, but shall not require any Seller to undertake any
independent investigation of the business or operations of the Company to
determine the accuracy of any such statements.

     "Straddle Period" means any taxable period that includes (but does not end
on) the Closing Date.

     "Subsidiary" means any Person of which a majority of the outstanding voting
securities or other voting equity interests are owned, directly or indirectly,
by the Company.

     "Tax" or "Taxes" means any taxes, assessment, duties, fees, levies,
imposts, deductions, or withholdings, including income, gross receipts, ad
valorem, value added, excise, real or personal property, asset, sales, use,
license, payroll, transaction, capital, net worth and franchise taxes, estimated
taxes, withholding, employment, social security, workers compensation, utility,
severance, production, unemployment compensation, occupation, premium, windfall
profits, transfer and gains taxes, or other governmental

                                       5

<PAGE>

charges of any nature whatsoever, imposed by any Taxing Authority of any
government or country or political subdivision of any country, and any
liabilities with respect thereto, including any penalties, additions to tax,
fines or interest thereon and includes any liability for Taxes of another person
by contract or as a transferee or successor.

     "Tax Return" means any report, return, statement, estimate, declaration,
notice, form or other information required to be supplied to a taxing authority
in connection with Taxes.

     "Taxing Authority" shall mean the Internal Revenue Service and any other
Governmental Authority responsible for the administration of any Tax.

     "Territory" means the markets identified in the Licenses as of the Closing
Date in which the Company or the licensee thereof is authorized to provide EBS
and/or BRS.

     "Tower Leases" means any contract, agreement or arrangement relating to the
use by Seller of Towers or other transmission/reception equipment on the Tower
Sites.

     "Tower Sites" means any real property, rooftop or other building location
used or occupied by Sellers on which Towers used by Sellers are located.

     "Tower Subleases" means any contract, agreement or arrangement under which
Sellers are a lessor, sublessor or licensor of, or makes available for use to
any Person, any Tower Site or portion thereof that is the subject of a Tower
Lease.

     "Towers" means any towers or other "antenna structures" as defined by the
FCC in Part 17 of the FCC Rules.

     "Transactions" means the transactions contemplated by this Agreement.

     "Underlying FCC License" means a license granted by the FCC covering the
spectrum covered by a Lease.

                                    ARTICLE 2
                           PURCHASE AND SALE OF SHARES

     Section 2.1 Purchase and Sale. On the terms and subject to the conditions
of this Agreement, at the Closing, Sellers shall sell, assign, transfer, convey
and deliver to Purchaser free and clear of all Liens, and Purchaser shall
purchase from Sellers, the Shares.

     Section 2.2 Purchase Price. Subject to the adjustments pursuant to Section
2.3(d), the purchase price (the "Purchase Price") for the Shares shall be an
amount equal to Twenty-One Million Dollars ($21,000,000.00).

     Section 2.3 Payment of Purchase Price.

          (a) Purchaser shall advance to Sellers, in accordance with
instructions provided by Sellers, a portion of the Purchase Price equal to One
Million Five Hundred Thousand Dollars ($1,500,000.00) (the "Down Payment
Advance"), payable by wire transfer

                                       6

<PAGE>

to the accounts specified by Sellers, three (3) Business Days after the later of
(i) receipt by Purchaser of a completed IRS Form W-9 from Sellers or (ii) the
date on which all Parties have executed this Agreement. The Down Payment Advance
shall be retained by or refunded by Sellers in accordance with Section 7.2(a).

          (b) At the Closing, Purchaser shall pay a portion of the Purchase
Price to PNC Bank, National Association on the Company's behalf such amounts as
are then necessary to pay in full the obligations due on the August 20, 2004
Term Note, amended August 31, 2005, maturing August 31, 2009 (the "Debt
Payment") (but in no event shall such amount exceed the Purchase Price less the
Down Payment Advance), it being understood that as of the Effective Date, the
principal amount due to PNC Bank is $980,000.00.

          (c) The Purchase Price (less the Down Payment Advance, less the Debt
Payment, and less the Holdback Amount) shall be payable at the Closing in
immediately available funds via wire transfer to the accounts designated by
Sellers; provided, however, at the option of each Seller, which such option
shall be exercised in writing prior to the expiration of thirty (30) days after
the later of (a) the execution of this Agreement or (b) the delivery to such
Seller of the Disclosure Memorandum, up to twenty-five percent (25%), but no
less than Twenty Thousand Dollars ($20,000) of such Seller's portion of the
Purchase Price may be payable in shares of Clearwire's Class A Common Stock at a
per share price equal to the Current Clearwire Price as of the Closing
("Clearwire Stock"); provided, however, if at the time of Closing, any such
electing Seller is not an Accredited Investor, then the entire portion of the
Purchase Price payable to such Seller shall be payable in immediately available
funds.

          (d) The Purchase Price shall be adjusted pursuant to this subsection
(d).

               (i) Between ten (10) and five (5) days prior to Closing, Sellers
shall deliver a pro forma consolidated balance sheet as of the Closing Date (the
"Closing Date Balance Sheet") and an updated Section 3.6 of the Disclosure
Schedule (the "Revised Schedule 3.6"). The Purchase Price payable at the Closing
shall be reduced by an amount equal to the amount by which the Company's
liabilities set forth on the Closing Date Balance Sheet and/or the Revised
Schedule 3.6 exceed the liabilities set forth on Section 3.6 of the Disclosure
Schedule as of the Effective Date. For purposes of the adjustments in this
subsection (i), no such adjustment shall be made for any amount for which an
adjustment was previously made pursuant to Section 2.3(b) or for the purchase
price payable (not in excess of $159,784.64) by the Company pursuant to the BTA
Purchase Agreement.

               (ii) Within 60 days of the Closing, Purchaser shall perform a
post-Closing audit of the cash, accounts receivable and liabilities (excluding
deferred revenues) of the Company as of the Closing Date. If the sum of (a)
amount of the then current accounts payable and (b) the Company's liabilities
(excluding deferred revenues) exceeds the sum of (x) the cash on hand and (y)
the accounts receivable from any subscriber who is not more than 60 days past
due by more than One Hundred Seventy Thousand Dollars ($170,000.00), then
Sellers shall pay the Purchaser the amount of such excess. If the amount by
which the sum of (a) the amount of the then current accounts payable and (b) the
Company's liabilities (excluding deferred revenues) exceeds the sum of (x) the
cash on hand

                                       7

<PAGE>

and (y) the accounts receivable from any subscriber who is not more than 60 days
past due is less than One Hundred Seventy Thousand Dollars ($170,000.00), then
the Purchaser shall pay the Sellers the amount by which it is less. Any amounts
required to be paid by Sellers to Purchaser pursuant to this subsection (ii)
shall reduce the Holdback Amount to be paid to Sellers at the expiration of the
Holdback Period. For purposes of the adjustments in this subsection (ii), no
such adjustment shall be made for any amount for which an adjustment was
previously made in accordance with subsection (i) above, or pursuant to Section
2.3(b), or for the purchase price (not in excess $159,784.64) of payable by the
Company pursuant to the BTA Purchase Agreement.

               (iii) If the closing of the transactions contemplated by the BTA
Purchase Agreement occurs prior to Closing, the Purchase Price payable hereunder
shall be increased by an amount equal to the purchase price paid thereunder;
provided, however, in no amount shall such increase exceed $159,784.64.

               (iv) If Sellers disagree with Purchaser's calculation of the
purchase price adjustments pursuant to this Section 2.3(d), either Sellers or
Purchaser may submit the determination for resolution to KPMG LLP and shall
instruct such accounting firm to make its determination of the issue submitted
to it within sixty (60) days following the date that the issue is referred to
such accounting firm, which determination shall be final and binding upon, and
nonappealable by, Purchaser and Sellers. Sellers and Purchaser shall have the
opportunity to submit written statements with supporting schedules to the
accounting firm setting forth its position. The accounting firm shall have the
discretion to determine the other procedures that shall govern the arbitration
proceeding. The parties shall share all costs and expenses associated with any
such dispute resolution.

     Section 2.4 Closing. Upon the terms and subject to the conditions hereof,
the closing of the sale of the Shares (the "Closing") shall take place at the
offices of Davis, Wright Tremaine, LLP, 2600 Century Square, 1501 Fourth Avenue,
Seattle, WA 98101, within five (5) Business Days following the date on which the
last condition under Article 6 has been satisfied or waived, or at such other
time and place as the Parties may mutually agree. The date on which Closing
occurs is called the "Closing Date."

                                    ARTICLE 3
                    REPRESENTATIONS AND WARRANTIES OF SELLERS

     Sellers, jointly and severally, represent and warrant to Purchaser as
follows:

     Section 3.1 Organization; Good Standing. The Company is a corporation duly
incorporated, validly existing and in good standing under the laws of the State
of Pennsylvania, and has all requisite corporate power and authority to own,
lease and operate its properties and to carry on its business as now conducted.
Except as set forth in Section 3.1 of the Disclosure Schedule, the Company is
duly qualified or authorized to do business as a foreign corporation and is in
good standing under the laws of each state in which it conducts business.
Section 3.1 of the Disclosure Schedule sets forth all of the jurisdictions in
which the Company conducts business. Sellers will cause the Company to register
to do business in the State of Ohio within thirty (30) days of the Effective
Date.

                                       8

<PAGE>

     Section 3.2 Authorization; Enforceability. Each Seller has all requisite
power and authority to execute and deliver this Agreement and each other
agreement, document or instrument or certificate contemplated by this Agreement
and to consummate the Transactions. This Agreement has been duly executed and
delivered by each Seller and is a legal, valid and binding obligation of each
Seller, enforceable against each Seller in accordance with its terms, subject to
bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles.

     Section 3.3 No Conflicts or Consents. Neither the execution, delivery and
performance by any Seller of this Agreement, nor the consummation of the
Transactions by any Seller, will (i) conflict with, or result in the breach of,
any provision of the certificate of incorporation or bylaws of the Company; (ii)
constitute, with or without the giving of notice or passage of time or both, a
breach, violation or default by any Seller, the Company or any of their
respective Affiliates, create a Lien, or give rise to any right of termination,
modification, cancellation, prepayment or acceleration, under (x) any Law or
license (subject to receipt of Consent of the FCC) or (y) except as listed on
Section 3.3 of the Disclosure Schedule any note, bond, mortgage, indenture,
lease, agreement or other instrument, in each case which is applicable to or
binding upon the Company, the Seller or any of the Assets; (iii) require any
Consent, other than the Consent of the FCC or the Consent of any third party to
any Assigned Contracts as listed on Sections 3.8 and 3.9 of the Disclosure
Schedule; or (iv) violate any Law which any Seller or the Company is bound.

     Section 3.4 Capitalization.

          (a) The authorized capital stock of the Company consists of 10,000,000
shares of Common Stock. As of the date hereof, 2,182,300 shares of Common Stock
are issued and outstanding and no shares of Company Common Stock are held by the
Company as treasury stock. Upon issuance of share of Common Stock to John W.
Bunce pursuant to his exercise of options granted by the Company, 2,267,112
shares of Common Stock will be issued and outstanding. All of the Shares were
duly authorized for issuance and are validly issued, fully paid and
non-assessable. Except for the options listed on Section 3.4 of the Disclosure
Schedule, all of which at or immediately prior to the Closing shall be either
(1) exercised by John W. Bunce or (2) terminated by the Company (in each case as
indicated in Schedule 3.4 of the Disclosure Schedule), there are no existing
options, warrants, calls, rights, commitments or other agreements of any
character to which the Company is a party requiring, and there are no securities
of the Company outstanding which upon conversion or exchange would require, the
issuance, sale or transfer of any additional shares of capital stock or other
equity securities of the Company or other securities convertible into,
exchangeable for or evidencing the right to subscribe for or purchase shares of
capital stock or other equity securities of the Company. Neither the Company nor
any Seller is a party to any voting trust or other voting agreement with respect
to any of the Shares or to any agreement relating to the issuance, sale,
redemption, transfer or other disposition of the capital stock of the Company.

          (b) Sellers are the record and beneficial owner of the Shares, and at
the Closing, the Shares shall in all cases, be free and clear of any and all
Liens. Each Seller has

                                       9

<PAGE>

the authority and capacity to sell, transfer, assign and deliver such Shares as
provided in this Agreement, and such delivery will convey to Purchaser good and
marketable title to such Shares, free and clear of any and all Liens, charges,
demands or adverse claims or other restrictions on the exercise of any of the
attributes of ownership.

     Section 3.5 Subsidiaries. Other than WinBeam Westmoreland, LLC, a
Pennsylvania limited liability company, (a) the Company has no Subsidiaries and
(b) does not hold, directly or indirectly, any interest in any Person.

     Section 3.6 Absence of Undisclosed Liabilities. Except as disclosed on
Section 3.6 of the Disclosure Schedule, the Company does not have any
liabilities or obligations (whether accrued, absolute, contingent, unliquidated
or otherwise, whether due or to become due).

     Section 3.7 Financial Statements. The Company has provided to Purchaser the
consolidated balance sheets of the Seller at December 31, 2003 and December 31,
2004, and the related consolidated statements of operations and cash flows for
the fiscal years ended December 31, 2003 and December 31, 2004, and the
consolidated balance sheet of the Company as of September 30, 2005 and the
related consolidated statements of operations and cash flows for the nine months
ended September 30, 2005 (each a "Financial Statement," and collectively the
"Financial Statements"). The Financial Statements (i) are in accordance with the
books and records of the Company, (ii) are complete and correct in all material
respects, and (iii) fairly present, in all material respects, the financial
condition, results of operations and cash flows of the Company as of the
respective dates and for the respective periods indicated therein. The books and
records of the Company are in all material respects correct and complete, are
maintained in accordance with good business practice and all applicable Laws,
and accurately present and reflect in all material respects all of the
transactions that are or should be therein described.

     Section 3.8 FCC Matters.

          (a) The Company validly holds the Company Licenses, permits and
authorizations set forth on Section 3.8 of the Disclosure Schedule. Section 3.8
of the Disclosure Schedule sets forth a true and correct list of the licenses
granted by the FCC authorizing the Company (the "Company Licenses" and together
with the Underlying FCC Licenses, the "Licenses") to construct and operate BRS
Channels in the markets listed therein. True and complete copies of the Company
Licenses have been delivered to Purchaser. There is no condition outside of the
ordinary course imposed on any of the Licenses by the FCC except those that are
either set forth on the face of the Licenses, as issued by the FCC, or contained
in the FCC Rules applicable generally to the stations of the type, nature and
class or location of the stations identified by the call signs listed on Section
3.8 of the Disclosure Schedule. To Sellers' Knowledge, the applications related
to the Licenses that are listed on Section 3.8 of the Disclosure Schedule are
all of the applications that are now pending at the FCC regarding the Licenses
or the Seller. No Person other than the Company, has any right, title, interest
or claim in or to the Company Licenses. The Licenses have been granted to the
Company, or the applicable Lessor, by Final Order and are (and will be on the
Closing Date) in full force and effect.

                                       10

<PAGE>

          (b) There is not pending or, to Sellers' Knowledge after due inquiry,
threatened against the Company, or the Licenses any application, action,
petition, objection or other pleading, or any proceeding with the FCC or any
other Governmental Authority, which (i) questions or contests the validity of,
or seeks the revocation, forfeiture, non-renewal or suspension of, any of the
Licenses, (ii) seeks the imposition of any modification or amendment with
respect to any of the Licenses, (iii) which would adversely affect the ability
of Sellers to consummate the Transactions or (iv) seeks the payment of a fine,
sanction, penalty, damages or contribution in connection with the use of the
Licenses. Except as set forth on Section 3.8 of the Disclosure schedule, there
are no facts or circumstances existing that would give rise to any such
application, action, petition, objection or other pleading, or proceeding with
the FCC or any other Governmental Authority. There is no unsatisfied adverse FCC
order or ruling outstanding against the Company, or any of the Licenses. The
Company is not a party to any complaint or proceeding at the FCC regarding any
of the Licenses.

          (c) To Sellers' Knowledge and except as set forth in Section 3.8(c) of
the Disclosure Schedule neither the Company nor any Lessor has agreed to accept
or allow any electromagnetic interference from any other FCC licensees,
permittees or applicants with respect to the Licenses and/or Channels, and no
such licensees, permittees or applicants have agreed to accept electromagnetic
interference from the Company or any Lessor with respect to their respective
facilities.

          (d) The Company and all Lessors are in compliance with all applicable
Laws except for any non-compliance that, individually or in the aggregate, will
not have a Seller Material Adverse Effect. The Company Licenses are free and
clear of all Liens and are unimpaired by any acts or omissions of the Company,
its agents, assignees and licensees. All amounts owed to the FCC in connection
with the Company Licenses have been timely paid.

          (e) None of the facilities subject to the Licenses is (a) authorized
pursuant to an authorization which is subject to challenge before the FCC or any
court of competent jurisdiction or (b) subject to any lease, sublease or any
agreement to make it available to a third party. None of the facilities subject
to the Licenses are operating pursuant to a special temporary or development
authority.

          (f) Section 3.8(e) of the Disclosure Schedule sets forth a true and
complete list of the following information in relation to each of the Tower
Leases and Subleases: (i) the expiration date of such Tower Lease or Sublease,
(ii) the name of the lessee or other counterparty to such Tower Lease or
Sublease, (iii) the address or location of the leased premises or Tower Site,
and (iv) the monthly, quarterly, or annual rent, as applicable, payable under
such Tower Lease or Sublease. True and complete copies of the Tower Subleases
have been provided to Purchaser.

     Section 3.9 Leases.

          (a) For each Lease, Section 3.9 of the Disclosure Schedule sets forth:
(i) the name of the applicable Lessor; (ii) the Lessor's FCC call sign or file
number for the

                                       11

<PAGE>

Underlying FCC License covering the Lease; (iii) the Channels and market in
which the Lease is used or useful; (iv) the expiration date of the Underlying
FCC License; and (v) the monthly, quarterly, or annual rent, as applicable,
payable under such Lease. True and complete copies of the Leases, together with
all amendments, waivers and notices related thereto (whether written or oral),
have been provided to Purchaser by the Company. The Leases are in full force and
effect, are free from any claims, liabilities or Liens and are unimpaired by any
acts or omissions of the Company, its agents, assignees and licensees and the
Company has valid leasehold interests in the Leases. Since entering into the
Leases, the Company has complied in all material respects with all of the terms
and conditions of the Leases and, to Sellers' Knowledge, there is no reason why
the Company should not be entitled to exercise all of the rights to which the
Company is entitled under the terms of each Lease, including, but not limited
to, the rights to use the EBS or BRS spectrum granted to the lessor under the
Underlying FCC License. The Company's operations and activities pursuant to the
Leases have been at all times conducted in all material respects in compliance
with the Communications Act of 1934, as amended, and the FCC Rules.

          (b) The Company has paid all taxes and other charges assessed against
the Assets, including but not limited to, against any EBS transmission
facilities. The Company has also paid all other taxes, assessments and fees due
from the Company or any Lessor as a result of the use of capacity on the
Channels by the Company and the provision of services by the Company or any of
the Company's sublessees over the Channels, including but not limited to any
regulatory fees and required contributions of any Lessor to the Universal
Service Fund under the Telecommunications Act of 1996 and the FCC Rules, except
for taxes, assessments or fees, if any, with respect to services provided by
Lessors to Lessors themselves and to any educational institution or
not-for-profit organization or site with which Lessors are working in
furtherance of educational goals approved by Lessors.

     Section 3.10 Title to Assets; Condition of Assets.

          (a) Except as set forth on Section 3.10(a) of the Disclosure Schedule,
the Company has good and marketable title to all of its assets and properties,
free and clear of any Liens except for (i) Liens for taxes not yet due and
payable or (ii) Liens listed on Section 3.10(a) of the Disclosure Schedule. The
assets and properties owned by, or leased to, the Company are sufficient for the
conduct of the business and operation of the Company as presently conducted.

          (b) Neither the Company nor any predecessors of the Company, directly
or indirectly, owns or has ever owned any real property. Section 3.10(b) of the
Disclosure Schedule sets forth all of the real property presently leased by the
Company (the "Leased Real Property"). The Company has good and marketable title
to enforceable leasehold interests in the Leased Real Property, free and clear
of all Liens except for Liens listed on Section 3.10(b) of the Disclosure
Schedule. The Company has furnished or made available to Purchaser true and
complete copies of all of the leases relating to the Leased Real Property (the
"Real Estate Leases"). No construction, alteration or other leasehold
improvement work with respect to any of the Real Estate Leases remains to be
paid for or performed by the Company. Except as set forth on the Section 3.10(b)
of the Disclosure Schedule, the Company is not obligated to purchase any Leased
Real Property.

                                       12

<PAGE>

          (c) Section 3.10(c) of the Disclosure Schedule contains a
categorization and summary description of the tangible personal property owned
by the Company (the "Personal Property") based upon current available business
records of the Company, and to Seller's Knowledge, the Company has no other
material Personal Property. No Affiliate of the Company has any interest,
directly or indirectly, in any of the Personal Property of the Company. All of
the Personal Property is in the possession of the Company. The Personal Property
is in good operating condition, ordinary wear and tear excepted, and is suitable
for the purposes for which it is intended.

     Section 3.11 Contracts.

          (a) Except as disclosed on Section 3.11 of the Disclosure Schedule,
the Company is not a party to any indenture, mortgage, guaranty, lease, license
or other contract, agreement or understanding, written or oral including,
without limitation, the Leases, the Tower Leases and the Real Estate Leases
(each a "Contract"). Accurate and complete copies of all Contracts, together
with all amendments, modifications, supplements, waivers and notices related
thereto (whether written or oral), have been delivered or made available to
Purchaser by the Company. Each of the Contracts is valid, binding on the Company
and, to Seller's Knowledge, each other party thereto and in full force and
effect, enforceable by the Company in accordance with its terms. The Company has
not assigned, pledged, transferred, or otherwise disposed of or granted any Lien
on its rights, titles and interests under any of the Contracts to any other
Person, nor, to Sellers' Knowledge, has any other party to the Contracts so
assigned, pledged, transferred, granted any Lien on, or otherwise disposed of
any of its rights, title and interests thereunder. Neither the Company nor, to
Sellers' Knowledge, any other party to any of the Contracts has failed to comply
with or is in material breach or material default thereunder. Except as set
forth on Section 3.11 of the Disclosure Schedule, no condition exists or event
has occurred and is continuing as of the date hereof and the Closing which, with
or without the lapse of time or the giving of notice, or both, would constitute
a material default by the Company, or to Sellers' Knowledge, any other party
under any Contract or give rise to any Lien or right of termination,
modification, cancellation, prepayment, suspension, limitation, revocation or
acceleration against the Company under any such Contract. The Company has not
received any notice of termination, or intent to terminate, with respect to any
Contract, and to Sellers' Knowledge, no party to any Contract has threatened to
terminate any Contract. None of the Assigned Contracts are with any Person that
is an officer, director, stockholder (or any family member of such Person) or
Affiliate of the Company.

          (b) Except as set forth on Section 3.11 of the Disclosure Schedule, no
Contract includes or provides for: (i) a covenant not to compete in any
geographical area or in any line of business; (ii) a lease, sublease or similar
agreement with any Person under which the Company is a lessor, sublessor or
licensor of, or makes available for use to any Person, any Asset; or (iii) the
sale of any Asset or any right, title or interest therein or the grant of any
preferential rights (including options and rights of first refusal) to purchase
any Asset or requiring the Consent of any third party to the Transactions.

     Section 3.12 Taxes.

                                       13

<PAGE>

          (a) Except as disclosed in Section 3.12 of the Disclosure Schedule,
the Company has timely filed all requisite Tax Returns. As to any Tax Return
which has not been timely filed, as disclosed in Section 3.12 of the Disclosure
Schedule, the Sellers will cause the Company to file such Tax Returns not more
than 45 days after the Effective Date. All such Tax Returns as filed are or will
be true, correct, accurate and complete in all material respects. The Company
has paid all Taxes which have been imposed upon the Company or upon any of the
assets, income or franchises of the Company (whether or not shown on any Tax
Return). There exists no proposed tax assessment against the Company. The Tax
Returns of the Company have never been audited by a Taxing Authority and the
Company has received no notice of any such audit. The Company has not waived any
statute of limitations with respect to Taxes or agreed to any extension of time
with respect to any Tax assessment or deficiency. There are no liens for Taxes
(other than Taxes not yet due and payable) upon any of the Company's assets.

          (b) The Company has not incurred any Taxes, assessments or
governmental charges other than in the ordinary course of business and the
Company has made adequate provisions on its books of account for all Taxes,
assessments and governmental charges with respect to its business, properties
and operations for such period.

          (c) The Company has timely withheld or collected from each amount paid
or owing to any employee, independent contractor, creditor, stockholder, or
other third party, the amount of all Taxes (including, but not limited to,
federal income Taxes, Federal Insurance Contribution Act Taxes and Federal
Unemployment Tax Act Taxes) required to be withheld or collected therefrom, and
has paid the same when due to the proper Taxing Authority or authorized
depositories.

          (d) Each affiliated group of corporations filing consolidated Tax
Returns of which the Company is or has been a member ("Affiliated Group") has
filed all income Tax Returns that it was required to file for each taxable year
during which the Company was a member of the group. All such Tax Returns were
true and correct in all material respects. All income Taxes owed by any
Affiliated Group (whether or not shown on any Tax return) have been paid for
each taxable period during which the Company was a member of the group The
Company is not a party to or bound by any Tax allocation or Tax sharing
agreement. The Company has no liability for the Taxes of any Person other than
the Company (A) under Treasury Regulation Section 1.1502-6 (or any similar
provision of state, local, or foreign law), (B) as a transferee or successor,
(C) by contract, or (D) otherwise.

          (e) The Company has not filed a consent under Code Section 341(f)
concerning collapsible corporations. The Company has not been a United States
real property holding corporation within the meaning of Code Section 897(c)(2)
during the applicable period specified in Code Section 897(c)(1)(A)(ii). The
Company has disclosed on its federal income Tax Return all positions taken
therein that could give rise to a substantial understatement of federal income
Tax within the meaning of Code Section 6662.

          (f) The Company is not be required to include any item of income in,
or exclude any item of deduction from, taxable income for any taxable period (or
portion thereof) ending after the Closing Date as a result of any: (i) change in
method of accounting

                                       14

<PAGE>

for a taxable period ending on or prior to the Closing Date; (ii) intercompany
transaction or excess loss account described in Treasury Regulations under Code
Section 1502 (or any corresponding or similar provision of state, local or
foreign income Tax law; (iii) installment sale or open transaction disposition
made on or prior to the Closing Date; or (iv) prepaid amount received on or
prior to the Closing Date.

          (g) The Company has delivered to Purchaser correct and complete copies
of all Tax Returns filed by the Company (including pertinent sections of any
consolidated federal income Tax Returns in which the operations of the Company
were included).

          (h) Set forth on attached Schedule 3.12 is a true, correct and
complete list of all jurisdictions in which the Company is required to file Tax
Returns or pay Taxes.

     Section 3.13 Litigation. Except as set forth on Section 3.13 of the
Disclosure Schedule, there is no Legal Proceeding now in progress or pending or,
to Sellers' Knowledge, threatened against the Company, any Seller, the Assets or
the business of the Company, nor to Sellers' Knowledge, does there exist any
basis therefore. The Company is not subject to any order, writ, injunction or
decree of any court or any federal, state, municipal or other domestic or
foreign Governmental Authority.

     Section 3.14 Intellectual Property. The Company owns or possesses
sufficient legal rights to all patents, trademarks, service marks, trade names,
copyrights, trade secrets, information and other proprietary rights and
processes (collectively "Intellectual Property Rights") necessary for its
business as presently conducted and as proposed to be conducted, without any
known infringement of the right or others. Section 3.14 of the Disclosure
Schedule lists all of the Intellectual Property Rights which the Company has
registered for its own benefit and all of the trade names, trademarks, service
marks and domain names used by the Company, whether registered or not. The
Company is not infringing upon, violating or otherwise acting adversely to, or
that by conducting its business as proposed that it would infringe upon, violate
or otherwise act adversely to, the right or claimed right of any Person under or
with respect to any Intellectual Property Rights or licenses of third parties.
There is not pending or, to the Sellers' Knowledge, threatened any claim or
litigation against or affecting the Company contesting its right to sell or use
any of its Intellectual Property Rights. Except as set forth in Section 3.14 of
the Disclosure Schedule, the Company has not granted any licenses, options or
other rights in Intellectual Property Rights to any Person, and the Company is
not obligated or under any liability to make payments by way of royalties, fees
or otherwise to any owner, licensor of, other claimant to, or party to any
option, license or agreement of any kind with respect to, any Intellectual
Property Rights, or other intangible asset, except for commercially available
software licensed on standard terms.

     Section 3.15 Books and Records. The corporate records of the Company are
true and complete and accurately reflect all meetings of and resolutions of, or
written consents by, the stockholders or board of directors (or committee
thereof) since the day of corporate organization.

                                       15
<PAGE>

     Section 3.16 Employee Benefit Plans.

          (a) Except as set forth in Section 3.16 of the Disclosure Schedule,
the Company has no plan, program or policy providing for compensation,
severance, termination pay, performance awards, stock or stock-related awards,
fringe benefits or other material employee benefits of any kind, whether formal
or informal, funded or unfunded, written or oral and whether or not legally
binding, which is now or has ever been sponsored, maintained, contributed to or
required to be contributed to by the Company or pursuant to which the Company
has any liability, contingent or otherwise, including, but not limited to, any
"employee benefit plan" within the meaning of Section 3(3) of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA") (each a "Benefit
Plan"). The Company does not currently sponsor, maintain, contribute to, nor is
required to contribute to, nor has the Company ever sponsored, maintained,
contributed to or been required to contribute to, or incurred or could incur any
liability to any Benefit Plan which provides, or has any liability to provide,
life insurance, medical, severance or other employee welfare benefits to any
current, former or retired employee, officer, consultant, independent
contractor, agent or director of the Company ("Employee") upon his or her
retirement or termination of employment, except as required by Code Section
4980B. Except as noted in Section 3.16 of the Disclosure Schedule, the Company
does not have any plan or commitment, whether legally binding or not, to
establish any new Benefit Plan, or to modify or terminate any Benefit Plan.

          (b) The Company is not nor ever has been (i) a member of a "controlled
group of corporations," under "common control" or a member of an "affiliated
service group" within the meaning of Code Sections 414(b), (c) or (m), (ii)
required to be aggregated under Code Section 414(o), or (iii) under "common
control," within the meaning of Section 4001(a)(14) of ERISA, or any regulations
promulgated or proposed under any of the foregoing Sections, in each case with
any entity other than the Company.

          (c) Each Benefit Plan has been established and maintained in
accordance with its terms and in compliance in all material respects with all
applicable laws, statutes, orders, rules and regulations, including but no
limited to ERISA and the Code, and each Benefit Plan intended to qualify under
Code Section 401 is, and since its inception has been, so qualified.

          (d) No "prohibited transaction," within the meaning of Code Section
4975 or Section 406 of ERISA, has occurred with respect to any Benefit Plan.
There are no actions, proceedings, arbitrations, suits or claims pending, or to
Sellers' Knowledge, threatened or anticipated (other than routine claims for
benefits) with respect to any Benefit Plan or Employee Agreement. To Sellers'
Knowledge, no Employee has been hired by the Company in violation of any
restrictive covenant or any non-compete agreement with any other person. Each
Benefit Plan can be amended, terminated or otherwise discontinued on not more
than thirty (30) days written notice to employees without liability to the
Company. No liability under any Benefit Plan has been funded nor has any such
obligation been satisfied with the purchase of a contract from an insurance
company as to which the Company has received notice that such insurance company
is insolvent or is in rehabilitation or any similar proceeding. No Benefit Plan
is under audit or investigation by the Internal

                                       16

<PAGE>

Revenue Service or the Department of Labor, and, to Sellers' Knowledge, no such
audit or investigation is pending or has been threatened. With respect to each
Benefit Plan which is an employee welfare benefit plan (within the meaning of
Section 3(1) of ERISA), all claims incurred by the Company is (i) insured
pursuant to a contract of insurance whereby the insurance company bears any risk
of loss with respect to such claims; (ii) covered under a contract with a health
maintenance organization (an "HMO") pursuant to which the HMO bears the
liability for claims, or (iii) reflected as a liability or accrued for o n the
Financial Statements.

     Section 3.17 Labor Relations; Employees. As of the Closing Date, the
Company shall have satisfied all obligations owed to its employees due to and
through the Closing Date, including, without limitation, for any wages,
salaries, commissions, bonuses or other direct compensation for any services
performed or amounts required to be reimbursed by them. The Company is in
compliance in all material respects with all applicable federal, state and local
laws, rules and regulations respecting employment, employment practices, labor,
terms and conditions of employment and wages and hours. Except as set forth in
Section 3.17 of the Disclosure Schedule, the Company is not bound by or subject
to (and none of its assets or properties are bound by or subject to any written
or oral, express or implied, commitment or arrangement with any employee, labor
union, or any collective bargaining agreement and no labor union has requested
or has sought to represent any of the employees, representatives or agents of
the Company. The transactions contemplated by this Agreement will not, to
Sellers' Knowledge, result in the violation of any applicable federal, state or
local laws, rules or regulations respecting employment, employment practices,
labor, terms and conditions of employment and wages and hours. Each officer and
consultant of the Company has executed standard confidentiality agreements,
which agreements are now in full force and effect.

     Section 3.18 Environmental Protections. The Company is in compliance in all
material respects with all applicable Environmental Laws. There is no pending
or, to the Sellers' Knowledge, threatened civil or criminal litigation, written
notice of violation, formal administrative proceeding, or investigation, inquiry
or information request by any Governmental Entity, relating to any Environmental
Law involving the Company. The Company has not caused, arranged or allowed, or
contracted with any party for, the transportation, treatment, storage or
disposal of any Hazardous Substance in connection with the operation of their
business or otherwise. No Hazardous Substance has been released into the
environment by the Company, or to Sellers' Knowledge any other Person, on or
from the Leased Real Property which release is required under applicable
Environmental Laws to be abated or remediated by the Company. To Sellers'
Knowledge, there are no past or present conditions, events, circumstances,
facts, activities, practices, incidents, actions, omissions or plans that can
reasonably be expected to form the basis of any claim, action, suit, proceeding,
hearing, investigation or inquiry against or involving the Company, allegedly or
actually based on or related to any violation of any Environmental Law or that
is reasonably likely to require the Company to incur any Losses in connection
therewith. For purposes of this Agreement, the term "Environmental Laws" shall
mean any federal, state, local or foreign law (including without limitation
common law), treaty, judicial decision, regulation, rule, judgment, order,
decree, injunction, permit, or governmental restriction or requirement or any
agreement with any governmental authority or other third party, relating to
health or safety of

                                       17

<PAGE>

Persons, natural resources, conservation, wildlife, waste management, Hazardous
Substances, and pollution (including without limitation, regulation of releases
and disposals to air, soil, land water and groundwater), and includes, without
limitation, the Comprehensive Environmental Response, Compensation and Liability
Act of 1980, as amended by the Superfund Amendments and Reauthorization Act of
1986, 42 U.S.C. Section 6901 et seq., Solid Waste Disposal Act, as amended by
the Resource Conservation and Recovery Act of 1976 and Hazardous and Solid Waste
Amendments of 1984, 42 U.S.C. Section 6901 et seq., Hazardous Materials
Transportation Act, 49 U.S.C. Section 1801 et seq., Federal Water Pollution
Control Act, as amended by the Clean Water Act of 1977, 33 U.S.C. Section 1251
et seq., Toxic Substances Control Act of 1976, 15 U.S.C. Section 2601 et seq.,
Occupational Safety and Health Act of 1970, as amended, 29 U.S.C. Section 651 et
seq., Emergency Planning and Community Right-to-Know Act of 1986, 42 U.S.C.
Section 11001 et seq., National Environmental Policy Act of 1975, 42 U.S.C.
Section 4321 et seq., Safe Drinking Water Act of 1974, as amended, 42 U.S.C.
Section 300(f) et seq., and any similar or implementing state, local and foreign
law, and all successor statutes, amendments, rules, regulations, guidance
documents and publications promulgated thereunder. For purposes of this
Agreement, the term "Hazardous Substances" shall include any chemical, wastes,
compounds, byproducts, pollutants, contaminants, flammable materials, petroleum,
polychlorinated biphenyls, explosives, radioactive materials, hazardous wastes,
toxic substances, asbestos containing material or any other substance or
material now or hereafter defined as hazardous or toxic pursuant to
Environmental Laws, and any other material that, because of its quantity,
concentration or physical, chemical or infectious characteristics, may cause or
pose a present or potential hazard to human health or the environment when
improperly used, treated, stored, disposed, generated, manufactured, transported
or otherwise handled.

     Section 3.19 Compliance with Laws; Permits. Except as provided on Section
3.19 of the Disclosure Schedule, the Company (a) has complied in all respects
with all Laws applicable to it and its business other than where noncompliance
would not, individually or in the aggregate, reasonably be expected to have a
Company Material Adverse Effect and (b) has all federal, state, local and
foreign governmental permits, authorizations, approvals, licenses, certificates
or consents necessary in the conduct of its business as currently conducted and
to own and use its assets in the manner in which such assets are currently owned
and used other than where the failure to possess such would not, individually or
in the aggregate, reasonably be expected to have a Company Material Adverse
Effect ("Permits"), such Permits are in full force and effect, and no violations
have been recorded in respect of any such Permit, and no proceeding is pending
or, to Sellers' Knowledge, threatened to revoke or limit any such Permit.
Section 3.19 of the Disclosure Schedule sets forth a list of all Permits.

     Section 3.20 Absence of Changes. Except as set forth on Section 3.20 of the
Disclosure Schedule, since September 30, 2005, the Company has conducted its
business in the ordinary course and there has not been (a) any material adverse
change having, or any event or condition which has had, or could reasonably be
expected to have, a Company Material Adverse Effect; (b) any waiver of any
valuable right of the Company, the cancellation of any valuable right of the
Company, or the cancellation of any material debt or claim held by the Company;
(c) any payment or declaration of dividends on, or other distribution with
respect to, or any direct or indirect redemption or acquisition of, any

                                       18

<PAGE>

securities of the Company; (d) any issuance of any stock, bonds or other
securities of the Company or any split, combination or reclassification of the
Company's capital stock; (e) any sale, assignment or transfer of any tangible or
intangible assets of the Company, except in the ordinary course of business, and
assets which are not, individually or in the aggregate, material; (f) any loan
by the Company to any officer, director, employee, consultant or shareholder of
the Company (other than advances to such persons in the ordinary course of
business in connection with travel and travel related expenses); (g) any damage,
destruction or loss (whether or not covered by insurance) materially and
adversely affecting the Assets; (h) any change in the accounting or Tax methods,
practices or policies or in any Tax election of the Company; (i) any
indebtedness incurred for borrowed money other than in the ordinary course of
business; (j) any amendment to or termination of any material agreement to which
the Company is a party (other than amendments to or terminations of agreements
pursuant to or contemplated by this Agreement); (k) any satisfaction or
discharge of any lien, claim or encumbrance of any obligation of the Company,
except in the ordinary course of business; (l) any material change in any
compensation arrangement or agreement with any employee, officer, director or
stockholder or the Company; (m) any mortgage, pledge, transfer of a security
interest in, or Lien, created by the Company, with respect to any of its
material properties or assets, except liens for taxes not yet due or payable; or
(n) any agreement or commitment (contingent or otherwise) to do any of the
foregoing.

     Section 3.21 Solvency. The fair value of the Company's property is greater
than the amount of its liabilities (whether subordinated, contingent, unmatured,
unliquidated or otherwise).

     Section 3.22 Related Party Transactions. Section 3.22 of the Disclosure
Schedule sets forth all obligations and transactions (i) between the Company and
the Company's Affiliates, and (ii) between the Company and any of the officers,
directors, equity holders or employees, or any of the affiliates or associates
(each term as defined in the Securities Exchange Act of 1934, as amended (the
"Exchange Act")) of the Company. Except as set forth on Section 3.22 of the
Disclosure Schedule, no officer or director of the Company or any parent, child
or spouse of any of such persons, or any trust, partnership or corporation in
which any of such persons has or has had an interest) has or has had, directly
or indirectly, (x) any interest or involvement in any entity which furnished or
sold, or furnishes or sells, services or products which the Company furnishes or
sells, or proposes to furnish or sell, or (y) any interest or involvement in any
entity which purchases from or sells or furnishes to, the Company, any goods or
services; provided, that ownership of no more than one percent of the
outstanding voting stock of a publicly traded corporation in and of itself shall
not be deemed an interest in any entity for purposes of this Section 3.22.
Except as set forth on Section 3.22 of the Disclosure Schedule, no Affiliate of
the Company (a) owns any property or right, tangible or intangible, which is
used in the business of the Company or (b) has any claim or cause of action
against the Company. Except as described on Section 3.22 of the Disclosure
Schedule, each transaction set forth on Section 3.22 of the Disclosure Schedule
is on terms that are (i) consistent with past practice of the Company and (ii)
at least as favorable to the Company as would be available with independent
third parties dealing at arms' length.

                                       19

<PAGE>

     Section 3.23 Brokers. Neither any Seller nor the Company or any of their
respective Affiliates has employed any broker or finder or incurred any
liability for any brokerage or finder's fees or commissions in connection with
the Transactions.

     Section 3.24 Securities Representations. References to a Seller in this
Section 3.24 only shall be deemed to refer only to those Sellers who elect to
receive Clearwire Stock as permitted in Section 2.3(c):

          (a) Each Seller is an Accredited Investor. Each Seller is acquiring
the Clearwire Stock for its own account, for investment purposes only and not
with a view to the distribution (as such term is used in Section 2(11) of the
Securities Act) thereof. Each Seller understands that the Clearwire Stock has
not been registered under the Securities Act and cannot be sold or otherwise
transferred unless subsequently registered under the Securities Act or an
exemption from such registration is available.

          (b) Each Seller is knowledgeable and capable of evaluating the risks
and merits of the transactions contemplated by this Agreement, including the
acquisition of shares of Clearwire Stock, and making an informed decision with
respect thereto. Each Seller has received the Disclosure Memorandum from
Purchaser in sufficient time to the review and analyze its contents prior to its
election to receive Clearwire Stock at the Closing. Each Seller and its
representatives have had sufficient opportunity to ask questions of and receive
answers from Purchaser and Clearwire concerning the business of Clearwire, its
operations, assets and liabilities. Each Seller and its representatives have had
an opportunity to review all documents and records concerning Clearwire and its
business that such Seller has requested. Each Seller has conducted its own
independent assessment, analysis and investigation with respect to Clearwire and
its business at the time of entering into this Agreement and has agreed to enter
into this Agreement and to accept Clearwire Stock as partial payment of the
Purchase Price based solely on this assessment, analysis and investigation, and
the representations and warranties of Purchaser set forth in this Agreement and
the information contained in the Disclosure Memorandum.

          (c) Each Seller is aware that Clearwire is a speculative enterprise,
that certain of the information disclosed to it contain forward looking
statements which involve risks and uncertainties, and that Clearwire's actual
results may differ significantly from the results discussed in these forward
looking statements. Each Seller further acknowledges that the value of
Clearwire's respective assets is inherently uncertain and is dependent upon
market, technological, and regulatory developments concerning feasible and
allowable uses. Each Seller represents and warrants to Purchaser and Clearwire
that it has assessed these factors independently and has agreed to enter into
this Agreement without reliance upon or expectation of any disclosures of any
kind from Purchaser or Clearwire, except as set forth in this Agreement and the
Disclosure Memorandum.

          (d) For purposes of application of state securities law, each Seller
is a resident of the state indicated below such Seller's signature.

                                       20

<PAGE>

                                    ARTICLE 4
                   REPRESENTATIONS AND WARRANTIES OF PURCHASER

     Section 4.1 Existence; Authorization. Purchaser is lawfully existing and in
good standing under the laws of the State of Nevada, has all requisite power and
authority to enter into this Agreement and to perform the obligations to be
performed by it under this Agreement. The execution and delivery of this
Agreement, and the performance by Purchaser of its obligations hereunder, have
been duly authorized by all necessary action on the part of Purchaser.

     Section 4.2 Enforceability. This Agreement has been duly executed and
delivered by Purchaser and is a legal, valid and binding obligation of
Purchaser, enforceable against Purchaser in accordance with its terms, subject
to bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles.

     Section 4.3 No Conflicts or Consents. Neither the execution, delivery and
performance by Purchaser of this Agreement, nor the consummation of the
Transactions by Purchaser, will require any Consent, other than the Consent of
the FCC.

     Section 4.4 Brokers. Purchaser has not employed any broker or finder or
incurred any liability for any brokerage or finder's fees or commissions in
connection with the Transactions.

     Section 4.5 FCC Qualifications. Purchaser is legally, technically and
financially qualified to hold licenses issued by the FCC for the BRS services
and to lease spectrum authorized by the FCC for EBS services. Purchaser is not
aware of any fact or circumstance as to the Purchaser that would cause the FCC
to determine that the transfer of control of the Company to the Purchaser is not
in the public interest.

     Section 4.6 Securities to be Issued to Seller. Upon their issuance and
delivery by Purchaser to Seller pursuant to this Agreement, the Clearwire Stock
will be duly issued, fully paid and nonassessable

     Section 4.7 Financial Statements. Each of the consolidated financial
statements (including, in each case, any related notes thereto) included in the
Disclosure Memorandum (the "Purchaser Financial Statements") was prepared in
accordance with generally accepted accounting principles ("GAAP") applied on a
consistent basis throughout the periods involved and each fairly presented the
consolidated financial position of Purchaser as of the respective dates thereof
and the consolidated results of its operations and cash flows for the periods
indicated, except that the unaudited interim financial statements were or are
subject to normal and recurring year-end adjustments which were not or are not
expected to be material in amount.

     Section 4.8 Material Changes. Except as disclosed in the Disclosure
Memorandum, since December 31, 2004, there has not been any material adverse
change in the financial condition, results of operation, assets, liabilities, or
business of Purchaser or any occurrence, circumstance or combination thereof
which reasonably could be expected to

                                       21

<PAGE>

result in any such material adverse change in, or may reasonably be expected to
have a material adverse effect on, the Purchaser.

                                    ARTICLE 5
                         COVENANTS AND OTHER AGREEMENTS

     Section 5.1 Consummation of Transactions. From and after the Effective
Date, each Party shall use its reasonable best efforts to take, or cause to be
taken, all actions, and to do, or cause to be done, all things necessary, proper
or advisable and consistent with applicable Law to perform its obligations under
this Agreement and to consummate the Transactions as soon as reasonably
practicable.

     Section 5.2 Certain Notices. Each Party shall promptly notify the other
Party in reasonable detail:

          (a) upon the commencement of, or the impending or threatened
commencement of, or upon obtaining knowledge of any facts that would give rise
to, any claim, action or proceeding brought to enjoin the consummation of the
Transactions, or against or relating to (i) the notifying Party or its
properties or assets, which could materially adversely affect the Transactions
or its ability to perform its obligations hereunder, or (ii) the Assets or their
use;

          (b) upon the occurrence of, or the impending or threatened occurrence
of, or upon obtaining knowledge of any facts that would give rise to, any event
which could cause or constitute a material breach of any of its representations,
warranties, covenants or agreements contained in this Agreement, and shall use
commercially reasonable efforts to prevent or promptly remedy such breach; and

          (c) upon the occurrence or existence of any event, condition,
circumstance or state of facts known to the notifying Party, which has had or
could have a material adverse effect on the Transactions or its ability to
perform its obligations hereunder, or could materially adversely affect the
Assets or their use.

     Section 5.3 Confidentiality. Pursuant to this Agreement and the performance
thereof, each party may receive certain Confidential Information. No party shall
use for itself, except in performance of the Agreement, or disclose to any
Person this Agreement or any Confidential Information, except (a) information
that was gained independent of such party's relationship to the Transactions and
became publicly available through no breach of any obligation of confidentiality
by such party; (b) information that is communicated to a third party with the
prior written consent of such party; or (c) information that is required to be
disclosed pursuant to the lawful order of a government agency or disclosure that
is required by operation of law, but in such event, only to the extent such
disclosure is required and, to the extent reasonably practicable, prior written
notice must be given to allow the other party's to seek a protective order or
other appropriate remedy. In the event of a breach or threatened breach of the
terms of this section, the non-breaching party shall be entitled to seek an
injunction prohibiting any such breach. Any such injunctive relief shall be in
addition to, and not in lieu of, any appropriate relief in the way of money
damages or any

                                       22

<PAGE>

other remedies available at law or in equity. Notwithstanding the foregoing,
Sellers may disclose this Agreement to their respective affiliates with whom
Sellers have enforceable non-disclosure or confidentiality agreements.
Notwithstanding the foregoing, Purchaser may disclose this Agreement to its
affiliates, strategic partners, actual or potential investors, lenders,
acquirers, merger partners, and others whom Purchaser deems in good faith to
have a need to know such information for purposes of pursuing the Transactions.
In addition, Sellers acknowledge and agrees that the financial terms of this
Agreement may be required to be separately stated in the consolidated financial
statements of Purchaser and/or its Affiliates and that the disclosure by
Purchaser or its Affiliates of such financial statements shall not be a breach
of this Agreement.

     Section 5.4 Further Assurances. Each Party shall forthwith upon request
execute and deliver such documents and take such actions as may reasonably be
requested by the other Party in order to effectuate the purposes of this
Agreement.

     Section 5.5 FCC Qualifications. Each Seller hereby covenants and agrees
that prior to the Closing it shall take commercially reasonable efforts to cause
the Company to maintain all necessary qualifications to hold and to obtain
renewal in the ordinary course of the Company Licenses, and further covenants
that it shall not knowingly or negligently take any action, or fail to take any
action, which action or failure to act creates a material risk that the Company,
or the applicable Lessor, would not be qualified to hold the Company Licenses or
the Underlying FCC Licenses, as applicable, or that the FCC would revoke the
Company Licenses or the Underlying FCC Licenses.

     Section 5.6 Consents. The Parties shall use commercially reasonable efforts
and shall cooperate to prepare and file with Governmental Authorities and other
Persons, no later than ten (10) days following the Effective Date, all
applications, notices, petitions and other documentation necessary or advisable
to obtain the Consents (it being understood that the failure to file within such
period shall not constitute a breach of this Agreement). Each Party shall
furnish to the other Party all information concerning such Party and its
Affiliates reasonably required for inclusion in any application to be made in
connection with the Transactions or to determine compliance with FCC Rules.

     Section 5.7 Sellers Affirmative Covenants. From the Effective Date to the
Closing Date, except as otherwise consented to in writing by Purchaser (which
consent shall not be unreasonably withheld) or as otherwise contemplated by this
Agreement, each Seller shall take commercially reasonable efforts to cause the
Company to:

          (a) conduct its operations in the ordinary course of business and
preserve the Company's business organization;

          (b) preserve and protect the goodwill and advantageous relationships
of the Company with its subscribers, suppliers, customers and all other Persons
having business dealings with the Company;

          (c) maintain the Company's books, accounts and records in the usual
and regular manner and in compliance with all applicable Laws and provide
Purchaser with

                                       23

<PAGE>

monthly financial statements as they become available, but in no event later
than forty-five (45) days after the end of the relevant month;

          (d) preserve and maintain in force all of the permits, Licenses,
Leases, and Contracts in effect on the Effective Date, or that become effective
during the Pre-Closing Period, or to the extent of noncompliance disclosed on
Section 3.5 of the Disclosure Schedule, to use its best efforts to cure such
noncompliance;

          (e) satisfy all liabilities in a timely manner as they become due;

          (f) comply with all Laws applicable to the conduct of the Company's
business and with all provisions of the Licenses and Leases;

          (g) file for authorization to do business in Ohio, file any Tax
Returns required by reason of the Company doing business in the State of Ohio,
and pay any taxes, fees, or penalties which may have accrued as a result of the
Company doing business in the State of Ohio prior to the Closing; and

          (h) consult with Purchaser regarding any one or collective group of
capital expenditures in excess of $15,000 or with respect to the engineering and
design of any additional networks or purchase of any equipment.

     Section 5.8 Sellers Negative Covenants. From the Effective Date to the
Closing Date, except as consented to in writing by Purchaser (which consent
shall not be unreasonably withheld) or as otherwise contemplated by this
Agreement, each Seller shall take commercially reasonable efforts to cause the
Company not to:

          (a) take any action or omit to take any action that could reasonably
be expected to render inaccurate any representation or warranty of any Sellers
contained in this Agreement (as if such representation or warranty was made on
each date from the Effective Date to the Closing Date);

          (b) create any employee benefit plans;

          (c) enter into any contracts or commitments, except those made in the
ordinary course of business, consistent with past practice that could have a
material effect on the Assets or the transactions contemplated by this
Agreement;

          (d) amend the certificate of incorporation or bylaws of the Company in
any manner that would affect Sellers' ability to consummate the Transactions;

          (e) amend, modify or terminate any Contract, including granting any
extension or renewal of term;

          (f) sell, lease, pledge, hypothecate, mortgage, encumber, transfer, or
otherwise dispose of or agree to sell, lease, pledge, hypothecate, mortgage,
encumber, transfer, license, or otherwise dispose of any of the Leases or
Licenses or of Personal Property with a value greater than $25,000;

                                       24

<PAGE>

          (g) enter into any contract, commitment, purchase order or obligation
(or group of related contracts, commitments, purchase orders or obligations)
which involves payment over the term thereof by the Company or otherwise
represents an obligation over the proposed term in excess of $5,000 or which
grants any party an option or right of first refusal on any of the Licenses,
Leases or Personal Property or contains any noncompete or nonsolicitation
provisions;

          (h) cancel, compromise, release or discharge any claim of the Company
upon or against any Person or waive any right of the Company, or institute,
settle or agree to settle any material action or proceeding before any
Governmental Authority, except in the ordinary course of business and except for
claims or actions involving less than $15,000;

          (i) commence any proceeding to merge, consolidate or liquidate or
dissolve, or obligate itself to do so;

          (j) issue or redeem any securities of the Company;

          (k) declare or pay any dividends; or

     enter into any agreement, arrangement or understanding to, or otherwise
offer or commit to (i) sell, transfer, assign or dispose of the spectrum to be
covered by the Licenses or any interest therein or portion thereof, or negotiate
therefor, or (ii) create, incur or suffer to exist any Lien on the spectrum to
be covered by the Licenses or any interest therein. Nothing in this paragraph
shall serve to cause the Company to abdicate, or Purchaser to assume, control of
the Licenses.

     Section 5.9 Noncompetition; Nonsolicitation.

          (a) Effective as of Closing, each Seller holding at least 5% of the
issued and outstanding stock of the Company immediately prior to the Closing, on
behalf of itself and its Affiliates, in consideration of Purchaser's agreement
to purchase the Shares, covenants that it shall not, at any time for a period of
two (2) years after the Closing, engage in, or retain, participate in or have
any interest, directly or indirectly, in any Person (whether as an investor,
agent, employee, creditor or in any other capacity which calls for the rendering
of services, advice, acts of management, operation or control) that engages in a
Restricted Business in the Territory; provided, however, that notwithstanding
the foregoing restriction, any Seller may own, directly or indirectly, a
non-controlling interest of less than 10% in any Restricted Business; and
provided, further, that the covenants contained in this Section 5.9 will not
apply to any Seller holding less than 10% of the issued and outstanding stock of
the Company immediately prior to the Closing.

          (b) The covenants contained in this Section 5.9, both as to time and
area covered, are necessary to protect the rights of Purchaser in the Company
after its acquisition of the Shares and are deemed by Purchaser and Sellers to
be an integral and important part of the transactions contemplated by this
Agreement. Each Seller has knowledge of the affairs, trade secrets, customers,
potential customers and other proprietary information of the business conducted
by the Company and acknowledges and agrees that compliance with the covenants
contained in this Section 5.9 is necessary for the protection of the goodwill
and

                                       25

<PAGE>

other proprietary interests of such business and of Purchaser. Each Seller
acknowledges and agrees that in the event of a breach of such covenants,
Purchaser would not have an adequate remedy at law, and Purchaser shall be
entitled to injunctive relief in addition to any other remedies which may be
available to it under this Agreement, at law or in equity. If any court of
competent jurisdiction shall at any time deem any of the covenants in this
Section 5.9 too lengthy or the Territory too extensive, the other provisions of
this Section 5.9 shall nevertheless stand, the term shall be deemed to be the
longest period permissible by law under the circumstances and the Territory
herein shall be deemed to comprise the largest territory permissible by law
under the circumstances. The court in each case shall reduce the time period
and/or Territory to permissible duration or size.

          (c) For the period described in Section 5.9, without Purchaser's prior
written consent, which shall not be unreasonably withheld, conditioned or
delayed, no Seller shall, directly or indirectly, (i) employ or engage, recruit
or solicit for employment or engagement any person who is or becomes employed or
engaged by Purchaser, or otherwise seek to influence or alter any such person's
relationship with Purchaser, or (ii) solicit or encourage any present or future
subscriber or customer of Purchaser to terminate or otherwise alter his, her or
its relationship with Purchaser.

     Section 5.10 Access. Between the Effective Date and the Closing Date,
Sellers shall cause the Company to, during normal business hours (a) give
Purchaser and its representatives and advisors access to all books, records,
offices and other facilities and properties of the Company; (b) permit Purchaser
and its representatives and advisors to make such inspections thereof as
Purchaser may reasonably request; and (c) cause the officers and advisors of the
Company to furnish Purchaser with such financial and operating data and other
information with respect to the Company as Purchaser may from time to time
reasonably request.

     Section 5.11 Publicity. Neither any Seller nor Purchaser shall issue any
press release or public announcement concerning this Agreement or the
transactions contemplated hereby without obtaining the prior written approval of
the other Party hereto, which approval will not be unreasonably withheld or
delayed, unless disclosure is otherwise required by applicable Law, provided
that, to the extent required by applicable Law, the Party intending to make such
release shall use its commercially reasonable efforts consistent with such
applicable Law to consult with the other Party with respect to the text thereof.

     Section 5.12 Cooperation on Tax Matters

          (a) Sellers shall cause the Company to file, prior to Closing, its
Federal income Tax Return and any state income Tax Returns required to be filed
by the Company with respect to its taxable year ending December 31, 2004. All
such Tax Returns shall be prepared and filed in a manner consistent with prior
practice, except as required by a change in applicable law. The Company and
Purchaser shall consult and cooperate with Sellers as to any elections to be
made on Tax Returns of the Company for periods ending on or before the Closing
Date. Purchaser shall cause the Company to be included in the Clearwire
Corporation consolidated federal income Tax Returns for all periods other than
periods ending on or before the Closing Date.

                                       26
<PAGE>

          (b) Sellers shall timely prepare and submit to Purchaser for review,
approval, and filing (A) any income Tax Returns for the Company for the taxable
period that includes the Closing Date, (B) any sales and use Tax Returns with
respect to the Pre-Closing Taxable Period, (C) any property Tax Returns with
respect to the Pre-Closing Taxable Period, and (D) any excise Tax Returns with
respect to the Pre-Closing Taxable Period. Sellers shall make such revisions to
the Tax Returns described in the preceding sentence as are reasonably requested
by Purchaser. Purchaser, the Company and Sellers shall cooperate fully, as and
to the extent reasonably requested by the other Party, in connection with the
filing of Tax Returns pursuant to this Section 5.12 and any audit, litigation or
other proceeding with respect to Taxes. Such cooperation shall include the
retention and (upon the other Party's request) the provision of records and
information that are reasonably relevant to the preparation of any such Tax
Return or to any such audit, litigation or other proceeding and making employees
available on a mutually convenient basis to provide additional information and
explanation of any material provided hereunder. The Company and Sellers agree
(A) to retain all books and records with respect to Tax matters pertinent to the
Company relating to any taxable period beginning before the Closing Date until
the expiration of the statute of limitations (and, to the extent notified by
Purchaser or Sellers, any extensions thereof) of the respective taxable periods,
and to abide by all record retention agreements entered into with any Taxing
Authority, and (B) to give the other Party reasonable written notice prior to
transferring, destroying or discarding any such books and records and, if the
other Party so requests, the Company or Sellers, as the case may be, shall allow
the other Party to take possession of such books and records.

     Section 5.13 Tax Sharing Agreements. All Tax-sharing agreements or similar
agreements with respect to or involving the Company shall be terminated as of
the Closing Date and, after the Closing Date, the Company shall not be bound
thereby or have any liability thereunder

                                    ARTICLE 6
                              CONDITIONS TO CLOSING

     Section 6.1 Conditions to the Obligations of Both Parties. Each Party's
obligation to consummate the Transactions contemplated by this Agreement are
subject to the satisfaction or waiver, on or prior to the Closing Date, of each
of the following conditions, as applicable to the Party specified:

          (a) All notices, filings and Consents required to be made or obtained
prior to the Closing by either Party or any of its respective Affiliates with
any Governmental Authority in connection with the execution and delivery of this
Agreement and the consummation of the Transactions shall have been made or
obtained without imposition of conditions outside of the ordinary course.

          (b) No preliminary or permanent injunction or other order, decree or
ruling issued by a Governmental Authority, nor any Law promulgated or enacted by
any Governmental Authority, shall be in effect that would impose material
limitations on the ability of either Party to consummate the Transactions.

                                       27

<PAGE>

     Section 6.2 Conditions to the Obligations of Sellers. Sellers' obligation
to consummate the Transactions contemplated by this Agreement are subject to the
satisfaction or waiver, on or prior to the Closing Date, of each of the
following conditions:

          (a) The representations and warranties of Purchaser contained herein
shall be true and correct in all material respects (except for representations
and warranties that are qualified as to materiality, which shall be true and
correct) as of the Closing as if made on and as of the Closing Date (except that
representations and warranties that are made as of a specific date need be so
true and correct only as of such date).

          (b) The covenants and agreements of Purchaser to be performed under
this Agreement on or prior to the Closing shall have been duly performed in all
material respects.

          (c) Purchaser shall have delivered a certificate of Purchaser dated
the Closing Date certifying that the conditions specified in (a) and (b) have
been met.

          (d) Purchaser shall have delivered the Purchase Price to Sellers in
cash or in shares of Clearwire Stock as provided in accordance with Section 2.3.

     Section 6.3 Conditions to the Obligations of Purchaser. Purchaser's
obligation to consummate the Transactions contemplated by this Agreement are
subject to the satisfaction or waiver on or prior to the Closing Date of each of
the following conditions:

          (a) The representations and warranties of Sellers contained herein
shall be true and correct in all material respects (except for representations
and warranties that are qualified as to materiality, which shall be true and
correct) as of the Closing as if made on and as of the Closing Date (except that
representations and warranties that are made as of a specific date need be so
true and correct only as of such date).

          (b) The covenants and agreements of Sellers to be performed under this
Agreement on or prior to the Closing shall have been duly performed in all
material respects.

          (c) Sellers shall have delivered to the Purchaser the following:

               (i) certificate(s) representing the Shares and a stock power
          signed in blank transferring the Shares to Purchaser, in forms
          acceptable to Purchaser and Purchaser's counsel;

               (ii) such other instruments and documents as Purchaser may
          reasonably require to vest in Purchaser all right, title and interest
          of Sellers in and to the Shares;

               (iii) a certificate of Sellers dated the Closing Date certifying
          that the conditions specified in Section 6.2(a) and (b) have been met;

               (iv) a certificate signed by the President of the Company
          certifying that the average monthly recurring revenue (excluding taxes
          and other pass-

                                       28

<PAGE>

          through charges) of the Company for the immediately prior two months
          period was at least One Hundred Thousand Dollars ($100,000);

               (v) written resignations of each of the officers and directors of
          the Company, effective as of the Closing Date; and

               (vi) with respect to any Seller that will receive Clearwire Stock
          at Closing, (A) pursuant to Section 2.2, a joinder to the Amended and
          Restated Stockholders Agreement, dated March 16, 2004, by and among
          Clearwire and Clearwire's stockholders, (B) a joinder to the
          Registration Rights Agreement, dated March 16, 2004, by and among
          Clearwire and certain of Clearwire's stockholders, and (C) completed
          Stockholder Questionnaire as provided by Clearwire prior to the
          Closing, each in the form provided to such Seller by Purchaser at
          least ten (10) Business Days prior to Closing.

                                    ARTICLE 7
                                   TERMINATION

     Section 7.1 Termination. This Agreement may be terminated at any time:

          (a) by mutual written consent of Purchaser and Sellers;

          (b) by either Purchaser or Sellers if (A) there shall be any law or
regulation that makes consummation of the Transactions illegal or otherwise
prohibited, or (B) any judgment, injunction, order or decree of any court or
other Governmental Entity having competent jurisdiction enjoining Purchaser and
Sellers from consummating the Transaction is entered and such judgment,
injunction or order shall have become final and non-appealable;

          (c) by Purchaser upon the occurrence of a material breach of any
representation, warranty or covenant in this Agreement by any Seller if such
breach is not cured within thirty (30) days following written notice by the
Purchaser to all of the Sellers, which notice shall describe the breach; or

          (d) by Sellers holding a majority in number of the Shares upon the
occurrence of a material breach of any representation, warranty or covenant in
this Agreement by the Purchaser if such breach is not cured within ten (10) days
following written notice by any Seller to the Purchaser, which notice shall
describe the breach; or

          (e) by either Purchaser, on the one hand, or by Sellers then holding a
majority in number of the Shares, on the other hand, if the FCC has not granted
its consent to the transaction contemplated hereby on or before the first
anniversary of the Effective Date.

     Section 7.2 Effect of Termination. In the event of a termination of this
Agreement, neither Party shall have any liability or further obligation to the
other, except that

          (a) Within two (2) business days immediately following the termination
of this Agreement, Sellers shall refund to Purchaser an amount equal to the Down
Payment

                                       29

<PAGE>

Advance, which obligation will survive the termination of this Agreement;
provided, however, that if the termination is pursuant to (1) Section 7.1(e) for
any reason other than the cause or fault of the Company and/or Sellers (which
cause or fault shall include, without limitation, a denial by the FCC on the
Parties' applications for consent to the transfer of control of the Company to
Purchaser by reason of the Company's or Sellers' lack of the requisite
qualifications to hold and transfer the Company Licenses), or (ii) Section
7.1(d), then Sellers shall be entitled to retain the Down Payment Advance
without any further obligation to the Purchaser;

          (b) nothing herein will relieve a Party from liability for any breach
by such Party of this Agreement; and

          (c) the provisions of this Article 7, Article 8 and Article 9 shall
survive the termination of this Agreement. Whether or not Closing occurs, all
costs and expenses incurred in connection with this Agreement and the
Transactions shall be paid by the Party incurring such expenses.

                                    ARTICLE 8
                              SURVIVAL AND REMEDIES

     Section 8.1 Survival. The representations and warranties contained in this
Agreement shall survive the Closing until the expiration of the Holdback Period,
at which time they shall expire; provided, however, any claims or actions with
respect to the representations, warranties, covenants, and indemnities made by
Sellers regarding Taxes shall terminate sixty (60) days after the applicable
statute of limitations expires with respect to the Taxes which are the subject
of such claim unless written notice of such claim is given to Sellers or such
actions are commenced within such period; further, provided, that any claims or
actions with respect to the representations and warranties contained in Section
3.2, Section 3.4(b) and Section 3.24 shall survive until the expiration of the
applicable statute of limitations. The covenants and other agreements contained
in this Agreement which are intended to apply to the period after the Closing
shall survive the Closing until the date or dates specified therein or the
expiration of the applicable statute of limitations (including any waivers or
extensions thereof) with respect to such matters, whichever is later.

     Section 8.2 Sellers Indemnification. Sellers shall, jointly and severally,
indemnify Purchaser, its representative members, managers, officers, employees,
agents, successors and assigns (the "Purchaser Indemnified Parties") and hold
the Purchaser Indemnified Parties harmless from and against any and all Damages
based upon, attributable to or resulting from:

          (a) the failure of any representation or warranty of any Seller set
forth in this Agreement, or any representation or warranty contained in any
certificate delivered by any Seller pursuant to this Agreement, to be true and
correct as of the dates made;

          (b) the breach of any covenant or other agreement on the part of any
Seller under this Agreement; and

          (c) any claims, actions, suits, proceedings or investigations relating
in any way to any acts, errors, omissions, operations or other activities of or
relating to the

                                       30

<PAGE>

Company which are not disclosed (or if disclosed, to the extent such applicable
item is under accrued) in or pursuant to this Agreement with respect to periods
prior to the Closing Date.

     Section 8.3 Purchaser Indemnification. Purchaser shall indemnify Sellers
and their respective representative members, managers, officers, employees,
agents, successors and assigns (the "Seller Indemnified Parties") and hold the
Seller Indemnified Parties harmless from and against any and all Damages based
upon, attributable to or resulting from:

          (a) the failure of any representation or warranty of Purchaser set
forth in this Agreement, or any representation or warranty contained in any
certificate delivered by pursuant to this Agreement, to be true and correct as
of the dates made; and

          (b) the breach of any covenant or other agreement on the part of
Purchaser under this Agreement;

          (c) any claims, actions, suits, proceedings or investigations relating
in any way to any acts, errors, omissions, operations or other activities of or
relating to the Company with respect to periods on or after the Closing Date,
except for any such Damages for which Sellers are required to indemnify
Purchaser pursuant to Section 8.2.

     Section 8.4 Tax Matters. Sellers shall, jointly and severally, indemnify
each of the Purchaser Indemnified Parties and hold them harmless from and
against, any Losses attributable to (i) all Taxes (or the non-payment thereof)
of the Company for the Pre-Closing Tax Period, (ii) all Taxes of any member of
an affiliated, consolidated, combined or unitary group of which the Company (or
any predecessor of the foregoing) is or was a member on or prior to the Closing
Date, including pursuant to Treasury Regulation Section 1.1502-6 or any
analogous or similar state, local, or foreign Law and (iii) any and all Taxes of
any person (other than the Company) imposed on the Company as a transferee or
successor, by contract or any Law, which Taxes relate to an event or transaction
occurring prior to the Closing. In the case of any Straddle Period, (X) the
amount of any Taxes based on or measured by income or receipts of the Company
for the Pre-Closing Tax Period shall be determined based on an interim closing
of the books as of the close of business on the Closing Date and (Y) the amount
of other Taxes of the Company for a Straddle Period which relate to the
Pre-Closing Tax Period shall be deemed to be the amount of such Tax for the
entire taxable period multiplied by a fraction the numerator of which is the
number of days in the taxable period ending on the Closing Date and the
denominator of which is the number of days in such Straddle Period.

     Section 8.5 Indemnification Procedures.

          (a) In the event that any claim shall be asserted by any Person in
respect of which payment may be sought under Section 8.2 or Section 8.3 hereof
(each, a "Claim"), the indemnified party shall reasonably and promptly cause
written notice of the assertion of any Claim of which it has knowledge which is
covered by this indemnity to be forwarded to the indemnifying party setting
forth the nature and amount of Damages asserted in such Claim. The indemnifying
party shall have the right, at its sole option and expense, to be represented by
counsel of its choice, which must be reasonably satisfactory to the

                                       31

<PAGE>

indemnified party, and to defend against, negotiate, settle or otherwise deal
with any Claim which relates to any Damages indemnified against hereunder. If
the indemnifying party elects to defend against, negotiate, settle or otherwise
deal with any Claim which relates to any Damages indemnified against hereunder,
it shall within five (5) days (or sooner, if the nature of the Claim so
requires) notify the indemnified party of its intent to do so. If the
indemnifying party elects not to defend against, negotiate, settle or otherwise
deal with any Claim which relates to any Damages indemnified against hereunder,
fails to notify the indemnified party of its election as herein provided or
contests its obligation to indemnify the indemnified party for such Damages
under this Agreement, the indemnified party may defend against, negotiate,
settle or otherwise deal with such Claim. If the indemnified party defends any
Claim, then the indemnifying party shall reimburse the indemnified party for the
expenses of defending such Claim upon submission of periodic bills. If the
indemnifying party shall assume the defense of any Claim, the indemnified party
may participate, at his or its own expense, in the defense of such Claim;
provided, however, that such indemnified party shall be entitled to participate
in any such defense with separate counsel at the expense of the indemnifying
party if (i) so requested by the indemnifying party to participate or (ii) in
the reasonable opinion of counsel to the indemnified party, a conflict or
potential conflict exists between the indemnified party and the indemnifying
party that would make such separate representation advisable; and provided,
further, that the indemnifying party shall not be required to pay for more than
one such counsel for all indemnified parties in connection with any Claim. The
Parties hereto agree to cooperate fully with each other in connection with the
defense, negotiation, or settlement of any such Claim.

          (b) Notwithstanding anything to the contrary in Section 8.5(a) above,
the following procedure shall apply to any Claim with respect to Taxes that is
subject to indemnification pursuant to this Article 8. Purchaser will, as to any
Taxes in respect of which Sellers have agreed to indemnify the Purchaser
Indemnified Parties pursuant to this Article 8, promptly inform Sellers of and
permit the participation of Sellers in, at Sellers' sole cost and expense, any
investigation, audit, or other proceeding by or with the Internal Revenue
Service or any other Taxing Authority empowered to administer or enforce such a
Tax and will not consent to the settlement or final determination in such
investigation, audit or other proceeding without the prior written consent of
Sellers, which shall not be unreasonably withheld.

          (c) After any final judgment or award shall have been rendered by a
court, arbitration board or administrative agency of competent jurisdiction and
the expiration of the time in which to appeal therefrom, or a settlement shall
have been consummated, or the indemnified party and the indemnifying party shall
have arrived at a mutually binding agreement with respect to a Claim hereunder,
the indemnified party shall forward to the indemnifying party notice of any sums
due and owing by the indemnifying party pursuant to this Agreement with respect
to such matter.

          (d) The failure of the indemnified party to give reasonably prompt
notice of any Claim shall not release, waive or otherwise affect the
indemnifying party's obligations with respect thereto except to the extent that
the indemnifying party can demonstrate actual loss and prejudice as a result of
such failure.

                                       32

<PAGE>

     Section 8.6 Limitation on Sellers' Liability.

          (a) Notwithstanding the foregoing provisions of Article 8, except as
provided in Section 8.6(b) below, in no event shall the Purchaser Indemnified
Parties be entitled to claim an aggregate amount of Damages otherwise subject to
indemnification against Sellers which exceeds the Holdback Amount, and Purchaser
shall look solely to the Holdback Amount for the satisfaction of all such
Claims.

          (b) The limitations set forth in Section 8.6(a) shall not apply to any
claim by Purchaser for indemnification pursuant to (i) Section 8.2(a) to the
extent that such claim is based on based on breaches of representations and
warranties set forth in Section 3.2, Section 3.4(b), Section 3.6, Section 3.12
and Section 3.24 (only as to each Seller who receives Clearwire Stock at
Closing); (ii) Section 8.4, or (iii) Section 8.2(b) to the extent such covenants
apply to periods after the Closing Date; provided, that, that in no event shall
the Purchaser Indemnified Parties be entitled to claim an aggregate amount of
Damages otherwise subject to indemnification against Sellers which exceeds the
Purchase Price. Any Damages which the Purchaser is entitled to be indemnified,
compensated or reimbursed directly by the Sellers pursuant to this Section
8.6(b) may not be recovered directly from the Sellers until such time as the
aggregate amount of the Damages set forth in all notices of Claims delivered to
the Sellers pursuant to Section 8.5 exceed the Holdback Amount less (i) all
Claims then asserted that are limited solely to the Holdback Amount and (ii) any
other Claims which have been asserted against the Holdback Amount pursuant to
this Section 8.6, in which case the Purchaser may recover such excess directly
from the Sellers.

     Section 8.7 Set Off from Holdback Amount.

          (a) Upon delivery by a Purchaser Indemnified Party of a notice of
Claim pursuant to Section 8.5 for which Purchaser is entitled to indemnification
pursuant to this Article 8, Purchaser may reserve from the Holdback Amount the
amount (not to exceed the amount asserted in the notice of the Claim) that
Purchaser determines in good faith to be a reasonable estimate of the potential
Damages in connection with such Claim. Amounts so reserved pursuant to this
Section 8.7 may be deducted from the Holdback Amount upon payment thereof to the
Sellers on the expiration of the Holdback Period and may be held by Purchaser
until the liability for such Claims is finally determined between the parties
and/or in accordance with Section 9.6.

          (b) Within five (5) Business Days after expiration of the Holdback
Period, Purchaser shall deliver to Sellers the remainder of the Holdback Amount
which has not been paid to Purchaser's Indemnified Parties or which has not been
reserved pursuant to subsection (a) above by reason of pending and unsatisfied
Claims for indemnification by a Purchaser's Indemnified Party. As soon as any
then pending Claim is resolved, Purchaser shall pay the Sellers the amount of
the Claim for which indemnification is due from the then-available Holdback and
promptly return to Sellers the amount, if any, by which the reserved funds
associated with such Claim exceed the actual Claim for which indemnification is
due to Sellers. When all such Claims have been resolved, the Purchaser shall
promptly return the balance, if any, of the Holdback Amount. All amounts due to
Sellers under this Section 8.7

                                       33

<PAGE>

shall be paid via wire transfer in immediately available funds to the accounts
designated by Sellers.

     Section 8.8 Remedies. IN NO EVENT SHALL ANY PARTY BE LIABLE FOR INDIRECT,
SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES ARISING OUT OF A BREACH OF THIS
AGREEMENT, EVEN IF ADVISED AT THE TIME OF BREACH OF THE POSSIBILITY OF SUCH
DAMAGES.

                                    ARTICLE 9
                                  MISCELLANEOUS

     Section 9.1 Entire Agreement. This Agreement constitutes the entire
agreement between the Parties pertaining to the subject matter hereof and
thereof and supersedes all prior and contemporaneous agreements, understandings,
negotiations and discussions, whether oral or written, of the Parties with
respect to the subject matter hereof and thereof.

     Section 9.2 Amendments and Waivers. Any provision of this Agreement may be
amended or waived if, and only if, such amendment or waiver is in writing and
signed (in the case of an amendment) by Sellers and Purchaser or (in the case of
a waiver) by the Party against whom the waiver is to be effective. No failure or
delay by any Party in exercising any right, power or privilege hereunder shall
operate as a waiver thereof nor shall any single or partial exercise thereof
preclude any other or further exercise thereof or the exercise of any other
right, power or privilege.

     Section 9.3 Remedies Cumulative. Except as otherwise provided herein, all
rights, powers and remedies provided under this Agreement or otherwise available
in respect hereof at law or in equity shall be cumulative and not alternative,
and the exercise or beginning of the exercise of any thereof by a Party shall
not preclude the simultaneous or later exercise of any other such right, power
or remedy by such Party.

     Section 9.4 Assignment. This Agreement shall be binding upon and shall
inure to the benefit of the Parties and their respective successors and
permitted assigns. This Agreement may not be assigned by either Party without
the prior written consent of the other Party; provided, however, that Purchaser
may, at any time prior to the Closing, assign Purchaser's right to receive
assignment of the Shares, but not Purchaser's obligations hereunder, without the
consent of Sellers.

     Section 9.5 Notices. All notices or other communications hereunder shall be
in writing and shall be deemed to have been duly given or made (i) upon delivery
if delivered personally (by courier service or otherwise), as evidenced by
written receipt or other written proof of delivery (which may be a printout of
the tracking information of a courier service that made such delivery), or (ii)
upon confirmation of dispatch if sent by facsimile transmission (which
confirmation shall be sufficient if shown by evidence produced by the facsimile
machine used for such transmission), in each case to the applicable addresses
set forth below (or such other address which either Party may from time to time
specify):

                                       34

<PAGE>

          If to Sellers:

          Quaker Capital Management
          Suite 1300 Arrott Building
          401 Wood St.
          Pittsburgh, Pa 15222
          Attention: Mark Schoeppner
          Facsimile: (412) 281-0323

          With a copy (which shall not constitute notice) to:

          Wilkinson Barker Knauer, LLP
          Suite 700
          2300 N Street, NW
          Washington, DC 20036
          Attention: Mary O'Connor, Esq.
          Facsimile: (202) 383-3338

          If to Purchaser:

          Clearwire Spectrum Holdings LLC
          5808 Lake Washington Blvd. Suite 300
          Kirkland, WA 98033
          Attention: Benjamin G. Wolff
          Facsimile: (425) 828-8061

          With a copy to:

          Davis Wright Tremaine LLP
          2600 Century Square
          1501 Fourth Avenue
          Seattle, WA 98101
          Attention: Julie Weston
          Facsimile: (206) 628-7699

     Section 9.6 Governing Law; Jurisdiction; Waiver of Jury Trial.

          (a) This Agreement shall be governed by, and construed in accordance
with, the internal laws of the Commonwealth of Pennsylvania, without reference
to the choice of law principles thereof.

          (b) THE PARTIES HEREBY IRREVOCABLY WAIVE ANY AND ALL RIGHT TO TRIAL BY
JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATED TO THIS AGREEMENT OR THE
TRANSACTIONS.

          (c) In the event of any controversy or claim of any nature arising out
of or relating to this Agreement or the breach, termination or validity thereof,
whether based on

                                       35

<PAGE>

contract, tort, statute, fraud, misrepresentation or any other legal or
equitable theory, or any subject matter governed by this Agreement (a "Dispute")
the Parties agree to continue performance during the pendency of any Dispute,
until the effective date of any termination of this Agreement. The party making
the claim will give written notice to the other parties identifying the issue or
amount disputed and including a detailed reason for the claim. The party against
whom the claim is made will respond in writing to the claim within 15 days from
the date of receipt of the claim document. At the written request of one of the
parties, each party will identify a knowledgeable, responsible representative
with settlement authority to meet and negotiate in good faith to resolve the
Dispute. The business representatives will meet (either by phone or in person)
and attempt to resolve the Dispute within 15 days of receiving the written
request. If the business representatives cannot resolve the Dispute within 30
days of their first meeting, then the Dispute will be resolved in accordance
with the remedies available at law.

     Section 9.7 Expenses. Except as otherwise expressly provided in this
Agreement, whether or not the Transactions are consummated, the Parties shall
bear their respective expenses (including, but not limited to, all compensation
and expenses of counsel, financial advisors, consultants, actuaries and
independent accountants) incurred in connection with this Agreement and the
Transactions. All filing fees required to be paid to any Governmental Authority
in connection with satisfying the conditions set forth in Article 5 will be
borne by Purchaser.

     Section 9.8 Payment of Sales, Use or Similar Taxes. Purchaser shall be
liable for and shall pay (and shall indemnify and hold harmless the Seller
Indemnified Parties against) all sales, use, stamp, documentary, filing,
recording, transfer, real estate transfer, registration, duty or similar fees or
taxes or governmental charges (together with any interest or penalty, addition
to tax or additional amount imposed) as levied by any Taxing Authority in
connection with the transactions contemplated by this Agreement.

     Section 9.9 Invalidity. In the event that any of the provisions contained
in this Agreement or in any other instrument referred to herein, shall for any
reason be held to be invalid, illegal or unenforceable in any respect, such
invalidity, illegality or unenforceability shall not affect any other provision
of this Agreement or such other instrument and such provision will be
ineffective only to the extent of such invalidity, illegality or
unenforceability, unless the consummation of the Transactions is impaired
thereby.

     Section 9.10 Counterparts. This Agreement may be executed and delivered
(including by facsimile transmission) in one or more counterparts, each of which
shall be deemed an original, but all of which together shall constitute one and
the same instrument.

     Section 9.11 Headings. The headings of the Articles and Sections herein are
inserted for convenience of reference only and are not intended to be a part of
or to affect the meaning or interpretation of this Agreement.

                            [SIGNATURE PAGE FOLLOWS]

                                       36

<PAGE>

     IN WITNESS WHEREOF, the Parties have duly executed this Agreement as of the
date first above written.

                                        CLEARWIRE SPECTRUM HOLDINGS LLC

                                        By:  /s/ Benjamin G. Wolff
                                            ------------------------------------
                                        Name: Benjamin G. Wolff
                                        Title: Executive Vice-President

                                        SHAREHOLDER

                                        QUAKER CAPITAL PARTNERS I, L.P.

                                        By:  /s/ Mark G. Schoeppner
                                            ------------------------------------
                                        Name: Mark G. Schoeppner
                                        Title:
                                               ---------------------------------
                                        Address: 401 Wood Street, Suite 1300
                                                 Pittsburgh, PA 15222

                                        SHAREHOLDER

                                        QUAKER CAPITAL PARTNERS II, L.P.

                                        By:  /s/ Mark G. Schoeppner
                                            ------------------------------------
                                        Name: Mark G. Schoeppner
                                        Title: President
                                               ---------------------------------
                                        Address: 401 Wood Street, Suite 1300
                                                 Pittsburgh, PA 15222

                                        SHAREHOLDER

                                        MARK G. AND CYNTHIA W. SCHOEPPNER

                                         /s/ Mark G. Schoeppner
                                        ----------------------------------------
                                        Mark G. Schoeppner

                                        1

<PAGE>

                                        /s/ Cynthia W. Schoeppner
                                        ----------------------------------------
                                        Cynthia W. Schoeppner
                                        Address: 217 Salem Drive
                                                 Pittsburgh, PA 15241

                                        SHAREHOLDER

                                        DAVID M. BROWN

                                        /s/ David M. Brown
                                        ----------------------------------------
                                        David M. Brown
                                        Address: 2678 Gloucester Drive
                                                 Pittsburgh, PA 15241

                                        SHAREHOLDER

                                        TERRANCE B. MICHAEL

                                        /s/ Terrance B. Michael
                                        ----------------------------------------
                                        Terrance B. Michael
                                        Address: 53 Waterfront Drive
                                                 Pittsburgh, PA 15222

                                        SHAREHOLDER

                                        PRATT M. HARRIS III

                                        /s/ Pratt M. Harris III
                                        ----------------------------------------
                                        Pratt M. Harris III
                                        Address: 3120 Scenic Drive
                                                 Mars, PA  16046

                                        2

<PAGE>

                                        SHAREHOLDER

                                        ROBERT B. PATTERSON

                                        /s/ Robert B. Patterson
                                        ----------------------------------------
                                        Robert B. Patterson
                                        Address: 8980 Laurel Lane
                                                 Cleveland, OH 44133

                                        SHAREHOLDER

                                        WM. J. AND MEGHAN F. MOORHEAD

                                        /s/ Wm. J. Moorhead
                                        ----------------------------------------
                                        Wm. J. Moorhead

                                        /s/ Meghan F. Moorhead (DECEASED)
                                        ----------------------------------------
                                        Meghan F. Moorhead
                                        Address: 822 Linda Lane
                                                 Pittsburgh, PA 15243

                                        SHAREHOLDER

                                        VIRGINIA COMMUNICATIONS, INC.

                                        By: /s/ Stephen Merrill
                                            ------------------------------------
                                        Name:  Stephen Merrill
                                              ----------------------------------
                                        Title: President
                                               ---------------------------------
                                        Address: 7621 East Gray Road, Suite B1
                                                 Scottsdale, AZ 85260-3423

                                        3

<PAGE>

                                        SHAREHOLDER

                                        GLOBAL INFORMATION TECHNOLOGIES, INC.

                                        By: /s/ Carmen A. Tawil
                                            ------------------------------------
                                        Name: Carmen A. Tawil
                                              ----------------------------------
                                        Title: Vice President
                                               ---------------------------------
                                        Address: 111 Congress Ave., Suite 2530
                                                 One Congress Plaza
                                                 Austin, TX 78701

                                        SHAREHOLDER

                                        BLAKE TWEDT

                                        /s/ Blake Twedt
                                        ----------------------------------------
                                        Blake Twedt
                                        Address: 8741 Bay Pointe Drive
                                                 Tampa, FL 33615

                                        SHAREHOLDER

                                        WITF, INC.

                                        By: /s/ Kathleen A. Pavelko
                                            ------------------------------------
                                        Name: Kathleen A. Pavelko
                                        Title: President & CEO
                                               ---------------------------------
                                        Address: 1982 Locust Lane
                                                 Harrisburg, PA 17109

                                        4

<PAGE>

                                        SHAREHOLDER

                                        JEFFREY A. REX

                                        /s/ Jeffrey A. Rex
                                        ----------------------------------------
                                        Jeffrey A. Rex
                                        Address: 165 Druid Drive
                                                 McMurray, PA 15317

                                        SHAREHOLDER

                                        ALBERT AND DANA MADISON

                                        /s/ Albert Madison
                                        ----------------------------------------
                                        Albert Madison

                                        /s/ Dana Madison
                                        ----------------------------------------
                                        Dana Madison
                                        Address: 268 Connecting Road
                                                 Pittsburgh, PA 15228

                                        SHAREHOLDER

                                        CAROLYN AND GEORGE BANNON

                                        /s/ Carolyn Bannon
                                        ----------------------------------------
                                        Carolyn Bannon

                                        /s/ George Bannon
                                        ----------------------------------------
                                        George Bannon
                                        Address: 132 Gaymor Drive
                                                 Pittsburgh, PA 15214

                                        5

<PAGE>

                                        SHAREHOLDER

                                        NANCY AND TOM JOHNSON

                                        /s/ Nancy Johnson
                                        ----------------------------------------
                                        Nancy Johnson

                                        /s/ Tom Johnson
                                        ----------------------------------------
                                        Tom Johnson
                                        Address: 117 Rachel Street
                                                 Springdale, PA 15144

                                        SHAREHOLDER

                                        DAVID AND REBECCA FALLGREN

                                        /s/ David Fallgren
                                        ----------------------------------------
                                        David Fallgren

                                        /s/ Rebecca Fallgren
                                        ----------------------------------------
                                        Rebecca Fallgren
                                        Address: 24 Fawnvue Drive
                                                 Robinson Twp., PA 15136

                                        6

<PAGE>

                                        SHAREHOLDER

                                        CHAPEL HILL PARTNERS, L.P.

                                        By: /s/ J. P. Sakey
                                            ------------------------------------
                                        Name: J. P. Sakey
                                        Title: President
                                               ---------------------------------
                                        Address: 608 Whispering Pines Drive
                                                 Pittsburgh, PA 15238

                                        SHAREHOLDER

                                        JOHN W. BUNCE

                                         /s/ John W. Bunce
                                        ----------------------------------------
                                        John W. Bunce
                                        Address: 102 Spencer Lane
                                                 Sewickley, PA 15143

                                        SHAREHOLDER

                                        CUNNINGHAM COMMUNICATIONS, INC.

                                        By: /s/ Joe Cunningham
                                            ------------------------------------
                                        Name: Joe Cunningham
                                        Title: President
                                               ---------------------------------
                                        Address: 5826 E. Leisure Lane
                                                 -------------------------------
                                                 Cave Creek AZ 85331
                                                 -------------------------------

                                        7

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00114-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00114-of-00352.parquet"}]]