Document:

Exhibit 4.4
                                WARRANT AGREEMENT

         Agreement made as of October 19, 2004, between GigaBeam Corporation, a
Delaware corporation with offices at 14225-C Sullyfield Circle, Chantilly,
Virginia 20151 ("Company"), and Continental Stock Transfer & Trust Company, a
New York corporation with offices at 17 Battery Place, New York, New York 10004,
a New York corporation, (herein called "Warrant Agent").

         WHEREAS, the Company is engaged in a public offering of Common Stock
and Warrants ("Public Offering") and in connection therewith, has determined to
issue and deliver up to (i) 1,380,000 (including up to 180,000 that may be
issued pursuant to the Underwriter's over-allotment option) Redeemable Common
Stock Purchase Warrants ("Public Warrants") to the public investors and (ii) an
aggregate of 120,000 Warrants to HCFP/Brenner Securities, LLC as representative
of the several underwriters ("Representative") or its respective designees
("Representative's Warrants" and together with the Public Warrants, the
"Warrant(s)"), each of such Warrants evidencing the right of the holder thereof
to purchase one share of the Company's common stock, $.001 par value per share
("Common Stock"), for $5.05; and

         WHEREAS, the Company has filed with the Securities and Exchange
Commission a Registration Statement (No. 333-116020) on Form SB-2 ("Registration
Statement"), for the registration under the Securities Act of 1933, as amended,
of, among others, the Warrants and the Common Stock issuable upon exercise of
the Warrants; and

         WHEREAS, the Company desires the Warrant Agent to act on behalf of the
Company, and the Warrant Agent is willing to so act, in connection with the
issuance, registration, transfer, exchange, redemption and exercise of the
Warrants; and

         WHEREAS, the Company desires to provide for the form and provisions of
the Warrants, the terms upon which they shall be issued and exercised, and the
respective rights, limitation of rights, and immunities of the Company, the
Warrant Agent, and the holders of the Warrants; and

         WHEREAS, all acts and things have been done and performed which are
necessary to make the Warrants, when executed on behalf of the Company and
countersigned by or on behalf of the Warrant Agent, as provided herein, the
valid, binding and legal obligations of the Company, and to authorize the
execution and delivery of this Agreement.

         NOW, THEREFORE, in consideration of the mutual agreements herein
contained, the parties hereto agree as follows:

         1.       Appointment of Warrant Agent. The Company hereby appoints the
Warrant Agent to act as agent for the Company for the Warrants, and the Warrant
Agent hereby accepts such appointment and agrees to perform the same in
accordance with the terms and conditions set forth in this Agreement.

<PAGE>

         2.       Warrants.

         2.1 Form of Warrant. Each Warrant certificate shall be issued in
registered form only, shall be in substantially the form of Exhibit A hereto,
the provisions of which are incorporated herein and shall be signed by, or bear
the facsimile signature of, the Chairman of the Board, President and/or
Vice-President and Secretary or Assistant Secretary of the Company and shall
bear a facsimile of the Company's seal. In the event the person whose facsimile
signature has been placed upon any Warrant certificate shall have ceased to be
Chairman of the Board, Chief Executive Officer and/or President and Secretary or
Assistant Secretary of the Company before such Warrant certificate is issued, it
may be issued with the same effect as if he or she had not ceased to be such at
the date of issuance. The Warrants represented by a Warrant certificate may not
be exercised until such certificate has been countersigned by the Warrant Agent
as provided in Section 2.3 hereof.

         2.2      Effect of Countersignature. Unless and until countersigned by
the Warrant Agent pursuant to this Agreement, a Warrant certificate shall be
invalid and of no effect.

         2.3      Events for Countersignature. The Warrant Agent shall
countersign a Warrant certificate only upon the occurrence of either of the
following events:

                  (a) if the Warrant certificate is to be issued in exchange or
         substitution for one or more previously countersigned Warrant
         certificates, as hereinafter provided, or

                  (b) if the Company instructs the Warrant Agent to do so.

         2.4      Registration.

                  2.4.1    Warrant Register. The Warrant Agent shall maintain
books ("Warrant Register"), for the registration of original issuance and the
registration of transfer of the Warrants. Upon the initial issuance of the
Warrants, the Warrant Agent shall issue and register the Warrants in the names
of the respective holders thereof in such denominations and otherwise in
accordance with instructions delivered to the Warrant Agent by the Company.

                  2.4.2    Registered Holder. Prior to due presentment for
registration of transfer of any Warrant certificate, the Company and the Warrant
Agent may deem and treat the person in whose name such Warrant certificate shall
be registered upon the Warrant Register ("registered holder"), as the absolute
owner of such Warrant and of each Warrant represented thereby (notwithstanding
any notation of ownership or other writing on the Warrant certificate made by
anyone other than the Company or the Warrant Agent), for the purpose of any
exercise thereof, and for all other purposes, and neither the Company nor the
Warrant Agent shall be affected by any notice to the contrary.

         2.5      Detachability of Warrants. The Warrant Agent understands that
until the completion of the Public Offering, the Warrants may only be purchased
and sold together with the Common Stock and, upon completion of the Public
Offering, are immediately separately transferable.

                                       2
<PAGE>

         3.       Terms and Exercise of Warrants.

         3.1      Warrant Price. Each Warrant certificate shall, when
countersigned by the Warrant Agent, entitle the registered holder thereof,
subject to the provisions of such Warrant certificate and of this Warrant
Agreement, to purchase from the Company the number of shares of Common Stock
stated therein, at the price of $5.05 per whole share, subject to the
adjustments provided in Section 4 hereof. The term "Warrant Price" as used in
this Warrant Agreement refers to the price per share at which Common Stock may
be purchased at the time a Warrant is exercised.

         3.2      Duration of Warrants. A Warrant may be exercised only during
the period ("Exercise Period") commencing on October 13, 2004, and terminating
on the earlier of October 13, 2009, or the date fixed for redemption of the
Warrant as provided in Section 6 of this Agreement ("Expiration Date"). Each
Warrant not exercised on or before its expiration date shall become void, and
all rights thereunder and all rights in respect thereof under this Agreement
shall cease at the close of business on its Expiration Date. The Company in its
sole discretion may extend the duration of the Warrants by delaying the
Expiration Date.

         3.3      Exercise of Warrants.

                  3.3.1    Payment. A Warrant, when countersigned by the Warrant
Agent, may be exercised by the registered holder thereof by surrendering the
certificate representing such Warrant, at the office of the Warrant Agent, or at
the office of its successor as Warrant Agent, in the Borough of Manhattan, City
and State of New York, with the purchase form, as set forth on the Warrant
certificate and in substantially the form of Exhibit A hereto, duly executed,
and by paying in full, in lawful money of the United States, in cash, good
certified check or bank draft payable to the order of the Company, the Warrant
Price for each full share of Common Stock as to which the Warrant is exercised
and any and all applicable taxes due in connection with the exercise of the
Warrant, the exchange of the Warrant for the Common Stock, and the issuance of
the Common Stock.

                  3.3.2    Issuance of Certificates. As soon as practicable
after the exercise of any Warrant and the clearance of the funds in payment of
the Warrant Price, the Company shall issue to the registered holder of such
Warrant a certificate or certificates for the number of full shares of Common
Stock to which he is entitled, registered in such name or names as may be
directed by him, and if such Warrant shall not have been exercised in full, a
new countersigned Warrant certificate for the number of shares as to which such
Warrant shall not have been exercised. Notwithstanding the foregoing, the
Company shall not be obligated to deliver any securities pursuant to the
exercise of a Warrant unless a registration statement under the Securities Act
of 1933 with respect to the securities is effective. Warrants may not be
exercised by, or securities issued to, any registered holder in any state in
which such exercise would be unlawful.

                                       3
<PAGE>

                  3.3.3    Valid Issuance. All shares of Common Stock issued
upon the proper exercise of a Warrant in conformity with this Agreement shall be
validly issued.

                  3.3.4    Date of Issuance. Each person in whose name any such
certificate for shares of Common Stock is issued shall for all purposes be
deemed to have become the holder of record of such shares on the date on which
the Warrant certificate was surrendered and payment of the Warrant Price was
made, irrespective of the date of delivery of such certificate, except that, if
the date of such surrender and payment is a date when the stock transfer books
of the Company are closed, such person shall be deemed to have become the holder
of such shares at the close of business on the next succeeding date on which the
stock transfer books are open.

                  3.3.5    Warrant Solicitation and Warrant Solicitation Fee.

                  (a)      The Company has engaged the Representative, on a
non-exclusive basis, as its agent for the solicitation of the exercise of the
Warrants. The Company, at its cost, will (i) assist the Representative with
respect to such solicitation, if requested by the Representative and (ii)
provide to the Representative, and direct the Company's transfer and warrant
agent to deliver to the Representative, lists of the record, and to the extent
known, beneficial owners of the Company's Warrants. Accordingly, the Company
hereby instructs the Warrant Agent to cooperate with the Representative in every
respect in connection with the Representative's solicitation activities,
including, but not limited to, providing to the Representative, at the Company's
cost, a list of record and beneficial holders of the Warrants and circulating a
prospectus or offering circular disclosing the compensation arrangements
referenced in Section 3.3.5(b) to holders of the Warrants at the time of
exercise of the Warrants. In addition to the conditions set forth in Section
3.3.5(b), the Representative shall accept payment of the warrant solicitation
fee provided in Section 3.3.5(b) only if it has provided bona fide services in
connection with the exercise of the Warrants. In addition to soliciting, either
orally or in writing, the exercise of Warrants by a Warrant holder, such
services also may include disseminating information, either orally or in
writing, to Warrant holders about the Company or the market for the Company's
securities, or assisting in the processing of the exercise of Warrants.

                  (b)       In each instance in which a Warrant is exercised,
the Warrant Agent shall promptly give written notice of such exercise to the
Company and the Representative ("Warrant Agent's Exercise Notice"). If, upon the
exercise of any Warrant after the first anniversary of the effective date of the
Registration Statement, (i) the market price of the Company's Common Stock is
greater than the Warrant Price, (ii) disclosure of compensation arrangements was
made both at the time of the original offering and at the time of exercise (by
delivery of the Prospectus or as otherwise required by applicable law, rule or
regulation), (iii) the exercise of the Warrant was solicited by the
Representative, (iv) the Warrant was not held in a discretionary account, (v)
the solicitation of the exercise of the Warrant was not in violation of
Regulation M (as such rule or any successor rule may be in effect as of such
time of exercise) promulgated under the Securities Exchange Act of 1934, and
(vi) the Representative is a member of the National Association of Securities
Dealers, Inc., then the Warrant Agent, simultaneously with the issuance of the
common stock underlying the Warrant(s), shall, on behalf of the Company, pay
from the proceeds received upon exercise of the Warrant(s), a fee of 5% of the
Warrant Price to the Representative in accordance with its actual solicitation
of a Warrant holder, provided that the Representative delivers to the Warrant
Agent within three (3) business days from the date on which the Representative
received the Warrant Agent's Exercise Notice, a certificate that the conditions
set forth in the preceding clauses (iii), (iv) and (v) have been satisfied. The
Representative and the Company may, at any time during business hours, examine
the records of the Warrant Agent, including its ledger of original Warrant
certificates returned to the Warrant Agent upon exercise of Warrants.

                                       4
<PAGE>

                  (c)      The provisions of this Section 3.3.5 may not be
modified, amended or deleted without the prior written consent of the
Representative.

         4.       Adjustments.

                  4.1      Stock Dividends - Split-Ups. If after the date
hereof, and subject to the provisions of Section 4.5, the number of outstanding
shares of Common Stock is increased by a stock dividend payable in shares of
Common Stock or by a split-up of shares of Common Stock or other similar event,
then, on the effective date thereof, the number of shares issuable on exercise
of each Warrant shall be increased in proportion to such increase in outstanding
shares and the then applicable Warrant Price shall be correspondingly decreased.

                  4.2      Aggregation of Shares. If after the date hereof, and
subject to the provisions of Section 4.5, the number of outstanding shares of
Common Stock is decreased by a consolidation, combination or reclassification of
shares of Common Stock or other similar event, then, upon the effective date of
such consolidation, combination or reclassification, the number of shares
issuable on exercise of each Warrant shall be decreased in proportion to such
decrease in outstanding shares and the then applicable Warrant Price shall be
correspondingly increased.

                  4.3      Replacement of Securities Upon Reorganization, etc.
If after the date hereof any capital reorganization or reclassification of the
Common Stock of the Company, or consolidation or merger of the Company with
another corporation, or the sale of all or substantially all of its assets to
another corporation or other similar event shall be effected, then, as a
condition of such reorganization, reclassification, consolidation, merger, or
sale, lawful and fair provision shall be made whereby the Warrant holders shall
thereafter have the right to purchase and receive, upon the basis and upon the
terms and conditions specified in the Warrants and in lieu of the shares of
Common Stock of the Company immediately theretofore purchasable and receivable
upon the exercise of the rights represented thereby, such shares of stock,
securities, or assets as may be issued or payable with respect to or in exchange
for the number of outstanding shares of such Common Stock equal to the number of
shares of such stock immediately theretofore purchasable and receivable upon the
exercise of the rights represented by the Warrants, had such reorganization,
reclassification, consolidation, merger, or sale not taken place and in such
event appropriate provision shall be made with respect to the rights and
interests of the Warrant holders to the end that the provisions hereof
(including, without limitation, provisions for adjustments of the Warrant Price
and of the number of shares purchasable upon the exercise of the Warrants) shall
thereafter be applicable, as nearly as may be in relation to any share of stock,
securities, or assets thereafter deliverable upon the exercise hereof. The
Company shall not effect any such consolidation, merger, or sale unless prior to
the consummation thereof the successor corporation (if other than the Company)
resulting from such consolidation or merger, or the corporation purchasing such
assets, shall assume by written instrument executed and delivered to the Warrant
Agent the obligation to deliver to the Warrant holders such shares of stock,
securities, or assets as, in accordance with the foregoing provisions, such
holders may be entitled to purchase.

                                       5
<PAGE>

                  4.4      Notices of Changes in Warrant. Upon every adjustment
of the Warrant Price or the number of shares issuable on exercise of a Warrant,
the Company shall give written notice thereof to the Warrant Agent, which notice
shall state the Warrant Price resulting from such adjustment and the increase or
decrease, if any, in the number of shares purchasable at such price upon the
exercise of a Warrant, setting forth in reasonable detail the method of
calculation and the facts upon which such calculation is based. Upon the
occurrence of any event specified in Sections 4.1, 4.2, or 4.3, then, in any
such event, the Company shall give written notice in the manner set forth above
of the record date for such dividend, distribution, or subscription rights, or
the effective date of such reorganization, reclassification, consolidation,
merger, sale, dissolution, liquidation, winding up or issuance. Such notice
shall also specify the date as of which the holders of Common Stock of record
shall participate in such dividend, distribution, or subscription rights, or
shall be entitled to exchange their Common Stock for stock, securities, or other
assets deliverable upon such reorganization, reclassification, consolidation,
merger, sale, dissolution, liquidation, winding up or issuance. Failure to give
such notice, or any defect therein, shall not affect the legality or validity of
such event.

                  4.5      No Fractional Shares. Notwithstanding any provision
contained in this Warrant Agreement to the contrary, the Company shall not issue
fractional shares upon exercise of Warrants. If, by reason of any adjustment
made pursuant to this Section 4, the holder of any Warrant would be entitled,
upon the exercise of such Warrant, to receive a fractional interest in a share,
the number of shares of Common Stock to be received shall be rounded off to the
nearest whole number.

                  4.6      Form of Warrant. The form of Warrant need not be
changed because of any adjustment pursuant to this Section 4, and Warrants
issued after such adjustment may state the same Warrant Price and the same
number of shares as is stated in the Warrants initially issued pursuant to this
Agreement. However, the Company may at any time in its sole discretion make any
change in the form of Warrant that the Company may deem appropriate and that
does not affect the substance thereof, and any Warrant thereafter issued or
countersigned, whether in exchange or substitution for an outstanding Warrant or
otherwise, may be in the form as so changed.

         5.       Transfer and Exchange of Warrants.

                  5.1      Registration of Transfer. The Warrant Agent shall
register the transfer, from time to time, of any outstanding Warrant upon the
Warrant Register, upon surrender of a Warrant certificate for transfer, properly
endorsed with signatures properly guaranteed and accompanied by appropriate
instructions for transfer. Upon any such transfer, a new Warrant certificate
representing an equal aggregate number of Warrants shall be issued and the old
Warrant certificate shall be canceled by the Warrant Agent. The Warrant
certificate so canceled shall be delivered by the Warrant Agent to the Company
from time to time upon request.

                                       6
<PAGE>

                  5.2      Procedure for Surrender of Warrants. Warrant
certificates may be surrendered to the Warrant Agent, together with a written
request for exchange, and thereupon the Warrant Agent shall issue in exchange
therefor one or more new Warrant certificates as requested by the registered
holder of the Warrant certificates so surrendered, representing an equal
aggregate number of Warrants; provided, however, that in the event that a
Warrant certificate surrendered for transfer bears a restrictive legend, the
Warrant Agent shall not cancel such Warrant certificate and issue new Warrant
certificates in exchange therefor until the Warrant Agent has received an
opinion of counsel for the Company stating that such transfer may be made and
indicating whether the new Warrant certificates also must bear a restrictive
legend.

                  5.3      Fractional Warrants. The Warrant Agent shall not be
required to effect any registration of transfer or exchange which will result in
the issuance of a warrant certificate for a fraction of a warrant. The number of
Warrants to be delivered shall be rounded off to the nearest whole number.

                  5.4      Service Charges. No service charge shall be made for
any exchange or registration of transfer of Warrants.

                  5.5      Warrant Execution and Countersignature. The Warrant
Agent is hereby authorized to countersign and to deliver, in accordance with the
terms of this Agreement, the Warrants required to be issued pursuant to the
provisions hereof, and the Company, whenever required by the Warrant Agent, will
supply the Warrant Agent with Warrant certificates duly executed on behalf of
the Company for such purpose.

         6.       Redemption.

                  6.1      Redemption. Not less than all of the outstanding
Warrants may be redeemed, at the option of the Company, after they become
exercisable and prior to the Expiration Date, at the office of the Warrant
Agent, upon the notice referred to in Section 6.2, at the price of $.05 per
Warrant ("Redemption Price"), provided that (i) the last sale price of the
Common Stock has been at least one hundred and fifty percent (150%) of the then
effective exercise price of the Public Warrants on each of the fifteen (15)
consecutive trading days ending on the third business day prior to the date on
which notice of redemption is given, the satisfaction of which condition shall
be certified by the Company and (ii) the Company has obtained the prior written
consent of the Underwriter. The provisions of this Section 6.1 may not be
modified, amended or deleted without the prior written consent of the
Underwriter.

                  6.2      Date Fixed for, and Notice of, Redemption. In the
event the Company shall elect to redeem all or any part of the outstanding
Warrants, the Company shall fix a date for the redemption. Notice of redemption
shall be mailed by first class mail, postage prepaid, by the Company or the
Company's agent at its direction not less than 30 days from the date fixed for
redemption to the registered holders of the outstanding Warrants to be redeemed
at their last address as they shall appear on the registration books. Any notice
mailed in the manner herein provided shall be conclusively presumed to have been
duly given whether or not the registered holder received such notice.

                                       7
<PAGE>

                  6.3      Exercise After Notice of Redemption. The outstanding
Warrants may be exercised in accordance with Section 3 of this Agreement at any
time after notice of redemption shall have been given by the Company pursuant to
Section 6.2 hereof and prior to the date fixed for redemption. On and after the
redemption date, the record holder of the outstanding Warrants shall have no
further rights except to receive, upon surrender of the outstanding Warrants,
the Redemption Price.

                  6.4      Outstanding Warrants Only. The Company understands
that the redemption rights provided for by this Section 6 apply only to
outstanding Warrants. To the extent a person holds rights to purchase Warrants,
such purchase rights shall not be extinguished by redemption. However, once such
purchase rights are exercised, the Company may redeem the Warrants issued upon
such exercise provided that the criteria for redemption is met. The provisions
of this Section 6.4 may not be modified, amended or deleted without the prior
written consent of the Underwriter.

         7.       Other Provisions Relating to Rights of Holders of Warrants.

                  7.1      No Rights as Stockholder. A Warrant does not entitle
the registered holder thereof to any of the rights of a stockholder of the
Company, including, without limitation, the right to receive dividends, or other
distributions, exercise any preemptive rights to vote or to consent or to
receive notice as stockholders in respect of the meetings of stockholders or the
election of directors of the Company or any other matter.

                  7.2      Lost, Stolen, Mutilated, or Destroyed Warrants. If
any Warrant certificate is lost, stolen, mutilated, or destroyed, the Company
and the Warrant Agent may, on such terms as to indemnity or otherwise as they
may in their discretion impose (which shall, in the case of a mutilated Warrant
certificate, include the surrender thereof), issue a new Warrant certificate of
like denomination, tenor, and date as the Warrant certificate so lost, stolen,
mutilated, or destroyed. Any such new Warrant certificate shall constitute a
substitute contractual obligation of the Company, whether or not the allegedly
lost, stolen, mutilated, or destroyed Warrant certificate shall be at any time
enforceable by anyone.

                  7.3      Reservation of Common Stock. The Company shall at all
times reserve and keep available a number of its authorized but unissued shares
of Common Stock that will be sufficient to permit the exercise in full of all
outstanding Warrants issued pursuant to this Agreement.

                  7.4      Registration of Common Stock. The Company agrees
that, during such time as the Public Warrants and Representative's Warrants
remain outstanding and exercisable, it shall file with the Securities and
Exchange Commission a post-effective amendment to the Registration Statement, if
possible, or a new registration statement, to maintain registration under the
Securities Act of 1933 of such Warrants and shares underlying such Warrants, and
it shall take such action as is necessary to qualify for sale, in those states
in which the Warrants were initially offered by the Company, the Common Stock
issuable upon exercise of the Warrants. The Company shall maintain the
effectiveness of such registration statement and keep current a prospectus
thereunder and maintain such qualification until the expiration of the Public
Warrants and the Representative's Warrants in accordance with the provisions of
this Agreement. The provisions of this Section 7.4 may not be modified, amended
or deleted without the prior written consent of the Representative.

                                       8
<PAGE>

         8.       Concerning the Warrant Agent and Other Matters.

                  8.1      Payment of Taxes. The Company will from time to time
promptly pay all taxes and charges that may be imposed upon the Company or the
Warrant Agent in respect of the issuance or delivery of shares of Common Stock
upon the exercise of Warrants, but the Company shall not be obligated to pay any
transfer taxes in respect of the Warrants or such shares.

                  8.2      Resignation, Consolidation, or Merger of Warrant
Agent.

                  8.2.1    Appointment of Successor Warrant Agent. The Warrant
Agent, or any successor to it hereafter appointed, may resign its duties and be
discharged from all further duties and liabilities (other than those incurred
prior to such resignation or discharge) hereunder after giving sixty (60) days'
notice in writing to the Company. If the office of the Warrant Agent becomes
vacant by resignation or incapacity to act or otherwise, the Company shall
appoint in writing a successor Warrant Agent in place of the Warrant Agent. If
the Company shall fail to make such appointment within a period of 30 days after
it has been notified in writing of such resignation or incapacity by the Warrant
Agent or by a holder of Warrants (who shall, with such notice, submit his
Warrant for inspection by the Company), then the holder of any Warrant may apply
to the Supreme Court of the State of New York for the County of New York for the
appointment of a successor Warrant Agent. Any successor Warrant Agent, whether
appointed by the Company or by such court, shall be a corporation organized,
existing and in good standing and authorized under the laws of the state in
which it was incorporated to exercise corporate trust powers, shall maintain an
office in the Borough of Manhattan, City and State of New York for the transfer
of the Warrants and, if not incorporated in the State of New York, shall be
authorized to do business in the State of New York as a foreign corporation, and
subject to supervision or examination by federal or state authority and shall be
authorized to serve as Warrant Agent for the Warrants under the Securities
Exchange Act of 1934, as amended. After appointment, any successor Warrant Agent
shall be vested with all the authority, powers, rights, immunities, duties, and
obligations of its predecessor Warrant Agent with like effect as if originally
named as Warrant Agent hereunder, without any further act or deed; but if for
any reason it becomes necessary or appropriate, the predecessor Warrant Agent
shall execute and deliver, at the expense of the Company, an instrument
transferring to such successor Warrant Agent all the authority, powers, and
rights of such predecessor Warrant Agent hereunder; and upon request of any
successor Warrant Agent the Company shall make, execute, acknowledge, and
deliver any and all instruments in writing for more fully and effectually
vesting in and confirming to such successor Warrant Agent all such authority,
powers, rights, immunities, duties, and obligations.

                  8.2.2    Notice of Successor Warrant Agent. In the event a
successor Warrant Agent shall be appointed, the Company shall give notice
thereof to the predecessor Warrant Agent and the transfer agent for the Common
Stock not later than the effective date of any such appointment.

                                       9
<PAGE>

                  8.2.3    Merger or Consolidation of Warrant Agent. Any
corporation into which the Warrant Agent may be merged or with which it may be
consolidated or any corporation resulting from any merger or consolidation to
which the Warrant Agent shall be a party, if it shall be eligible to serve as
Warrant Agent under Section 8.2.1, shall be the successor Warrant Agent under
this Agreement without any further act.

         8.3      Fees and Expenses of Warrant Agent.

                  8.3.1    Remuneration. The Company agrees to pay the Warrant
Agent reasonable remuneration for its services as such Warrant Agent hereunder
and will reimburse the Warrant Agent upon demand for all expenditures that the
Warrant Agent may reasonably incur in the execution of its duties hereunder.

                  8.3.2    Further Assurances. The Company agrees to perform,
execute, acknowledge, and deliver or cause to be performed, executed,
acknowledged, and delivered all such further and other acts, instruments, and
assurances as may reasonably be required by the Warrant Agent for the carrying
out or performing of the provisions of this Agreement.

         8.4      Liability of Warrant Agent.

                  8.4.1    Reliance on Company Statement. Whenever in the
performance of its duties under this Warrant Agreement, the Warrant Agent shall
deem it necessary or desirable that any fact or matter be proved or established
by the Company prior to taking or suffering any action hereunder, such fact or
matter (unless other evidence in respect thereof be herein specifically
prescribed) may be deemed to be conclusively proved and established by a
statement signed by the President of the Company and delivered to the Warrant
Agent. The Warrant Agent may rely upon such statement for any action taken or
suffered in good faith by it pursuant to the provisions of this Agreement.

                  8.4.2    Indemnity. The Warrant Agent shall be liable
hereunder only for its own negligence or willful misconduct. The Company agrees
to indemnify the Warrant Agent and save it harmless against any and all
liabilities, including judgments, costs and reasonable counsel fees, for
anything done or omitted by the Warrant Agent in the execution of this Agreement
except as a result of the Warrant Agent's negligence, willful misconduct, or bad
faith.

                  8.4.3    Exclusions. The Warrant Agent shall have no
responsibility with respect to the validity of this Agreement or with respect to
the validity or execution of any Warrant (except its countersignature thereof);
nor shall it be responsible for any breach by the Company of any covenant or
condition contained in this Agreement or in any Warrant; nor shall it be
responsible to make any adjustments required under the provisions of Section 4
hereof or responsible for the manner, method, or amount of any such adjustment
or the ascertaining of the existence of facts that would require any such
adjustment; nor shall it by any act hereunder be deemed to make any
representation or warranty as to the authorization or reservation of any shares
of Common Stock to be issued pursuant to this Agreement or any Warrant or as to
whether any shares of Common Stock will when issued be valid and fully paid and
nonassessable.

                                       10
<PAGE>

                  8.5      Acceptance of Agency. The Warrant Agent hereby
accepts the agency established by this Agreement and agrees to perform the same
upon the terms and conditions herein set forth and among other things, shall
account promptly to the Company with respect to Warrants exercised and
concurrently account for, and pay to the Company, all moneys received by the
Warrant Agent for the purchase of shares of the Company's Common Stock through
the exercise of Warrants.

         9.       Miscellaneous Provisions.

                  9.1      Successors. All the covenants and provisions of this
Agreement by or for the benefit of the Company or the Warrant Agent shall bind
and inure to the benefit of their respective successors and assigns.

                  9.2      Notices. Any notice, statement or demand authorized
by this Warrant Agreement to be given or made by the Warrant Agent or by the
holder of any Warrant to or by the Company shall be sufficiently given or made
if sent by certified mail, or private courier service, postage prepaid,
addressed (until another address is filed in writing by the Company with the
Warrant Agent), as follows:

                           GigaBeam Corporation
                           14225-C Sullyfield Circle
                           Chantilly, Virginia  20151
                           Attn: Louis S. Slaughter, Chief Executive Officer

                  with a copy to:

                           Blank Rome LLP
                           405 Lexington Avenue
                           New York, New York  10174
                           Attn:  Robert J. Mittman, Esq.

Any notice, statement or demand authorized by this Agreement to be given or made
by the holder of any Warrant or by the Company to or on the Warrant Agent shall
be sufficiently given or made if sent by certified mail or private courier
service, postage prepaid, addressed (until another address is filed in writing
by the Warrant Agent with the Company), as follows:

                           Continental Stock Transfer & Trust Company
                           17 Battery Place
                           New York, New York 10004

                                       11
<PAGE>

                  9.3      Applicable law; Jurisdiction. The validity,
interpretation, and performance of this Agreement and of the Warrants shall be
governed in all respects by the law of the State of New York, without giving
effect to principles of conflicts of law. The Company hereby agrees that any
action, proceeding or claim against it arising out of or relating in any way to
this Agreement shall be brought and enforced in the courts of the State of New
York or the United States District Court for the Southern District of New York,
and irrevocably submits to such jurisdiction, which jurisdiction shall be
exclusive. The Company hereby waives any objection to such exclusive
jurisdiction and that such courts represent an inconvenience forum. Any such
process or summons to be served upon the Company may be served by transmitting a
copy thereof by registered or certified mail, return receipt requested, postage
prepaid, addressed to it at the address set forth in Section 9.2 hereof. Such
mailing shall be deemed personal service and shall be legal and binding upon the
Company in any action, proceeding or claim.

                  9.4      Persons Having Rights Under This Agreement. Nothing
in this Agreement expressed and nothing that may be implied from any of the
provisions hereof is intended, or shall be construed, to confer upon, or give
to, any person or corporation other than the parties hereto and the registered
holders of the Warrants and, for the purposes of Sections 3.3.5, 6.1 through 6.4
and 7.4 hereof, the Representative, any right, remedy, or claim under or by
reason of this Warrant Agreement or of any covenant, condition, stipulation,
promise, or agreement hereof. The Representative shall be deemed to be a
third-party beneficiary of this Agreement with respect to such Sections. All
covenants, conditions, stipulations, promises, and agreements contained in this
Warrant Agreement shall be for the sole and exclusive benefit of the parties
hereto (and the Representative to the extent set forth above) and their
successors and assigns and of the registered holders of the Warrants.

                  9.5      Examination of the Warrant Agreement. A copy of this
Agreement shall be available at all reasonable times at the office of the
Warrant Agent in the Borough of Manhattan, City and State of New York, for
inspection by the registered holder of any Warrant. The Warrant Agent may
require any such holder to submit his or her Warrant for inspection by it.

                  9.6      Counterparts. This Agreement may be executed in any
number of counterparts and each of such counterparts shall for all purposes be
deemed to be an original, and all such counterparts shall together constitute
but one and the same instrument.

                  9.7      Effect of Headings. The Section headings herein are
for convenience only and are not part of this Warrant Agreement and shall not
affect the interpretation thereof.

                                       12
<PAGE>

         IN WITNESS WHEREOF, this Agreement has been duly executed by the
parties hereto under their respective corporate seals as of the day and year
first above written.

Attest:                                       GIGABEAM CORPORATION

/s/ Christin R. Cerullo                       By: /s/ Louis S. Slaughter
--------------------------------                 -----------------------------
Name: Christin R. Cerullo                        Name:  Louis S. Slaughter
Title:                                           Title: Chief Executive Officer

                                              CONTINENTAL STOCK TRANSFER
Attest:                                         & TRUST COMPANY

/s/ R. Bernhammer                             By: /s/ Felix Orihuela
--------------------------------                 -----------------------------
Name:  R. Bernhammer                             Name:  Felix Orihuela
Title: Vice President                            Title: Vice President and
                                                        Senior Account Executive

                                       13EXHIBIT 10.13

                          HCFP/BRENNER SECURITIES, LLC
                         888 SEVENTH AVENUE, 17TH FLOOR
                            NEW YORK, NEW YORK 10106

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

                             MERGER, ACQUISITION AND
                           OTHER BUSINESS ARRANGEMENT
                                    AGREEMENT
                   -------------------------------------------

                                          October 19, 2004

GigaBeam Corporation
14225-C Sullyfield Circle
Chantilly, Virginia  20151
Attn:  Louis Slaughter, Chief Executive Officer

Gentlemen:

         This is to confirm our agreement whereby GigaBeam Corporation
("Company") will compensate HCFP/Brenner Securities, LLC ("Brenner") if the
Company engages in transactions with persons introduced to it by Brenner:

         1. Agreement Regarding Mergers, Acquisitions and Other Business
Arrangements

            (a) In the event that any acquisition of and/or merger with other
companies or joint ventures or other transaction with any third parties
including, without limitation, (i) the sale of the business, assets or stock of
the Company or any its subsidiaries or affiliates or any significant portion
thereof, (ii) the purchase of the business, assets or stock of a third party or
any significant portion thereof or (iii) entering into a commercial relationship
with a third party not involving a transaction of the type referred to in
clauses (i) or (ii) (collectively, a "Transaction"), occur which result from or
are caused by introductions made by Brenner within twelve (12) months prior
thereto, the Company shall pay Brenner 5% of the first $5 million of Legal
Consideration (hereinafter defined), 4% of the next $1million of Legal
Consideration, 3% of the next $1 million of Legal Consideration, 2% of the next
$1 million of Legal Consideration and 1% of the excess Legal Consideration, if
any, over $8 million paid in any such Transaction.

            For purposes of this Agreement, the phrase "Legal Consideration"
shall mean the total value of the securities (valued as determined in the
applicable agreement governing the terms of the Transaction or, if not so
valued, at market on the day of closing, or if there is no public market, valued
as set forth herein for other property), cash and assets and property or other
benefits exchanged by the Company or received by the Company or its shareholders
as consideration as a result of or arising out of the Transaction, irrespective
of the period of payment or terms (all valued at fair market present value as
agreed or, if not, by an independent appraiser selected by the Company in good
faith).

<PAGE>

            (b) All fees payable under this Section 1 are due and payable to
Brenner, in cash or by certified check, at the closing or closings of any
Transaction; provided, that if the Legal Consideration on any Transaction is
other than all cash, the payment to Brenner shall be, at the option of the
Company, either the cash equivalent or such other consideration proportionate
with the types of Legal Consideration paid on such Transaction; and provided,
however, that if any Legal Consideration is to be paid or received at a future
date or is contingent upon a future event, the related fees shall be due and
payable on the business day after receipt or payment by the Company. No fees
shall be payable under this Section 1 or otherwise if, for any reason, the
Transaction is not consummated.

         2. Term of Agreement

         This Agreement shall be for a term of three years from the date hereof.

         3. Expenses

         The Brenner shall bear all costs and expenses incurred by Brenner
directly in connection with the introduction or attempted introduction(s) made
by Brenner in connection with Transactions and otherwise in connection with the
performance of its services hereunder, unless otherwise agreed to by the
Company.

         4. Use of Name and Reports

         Use of Brenner's name in annual reports or any other reports of the
Company or press releases issued by the Company shall require the prior written
approval of Brenner, which shall not be unreasonably withheld or delayed.

         5. Status as Independent Contractor

         Brenner shall perform its services as an independent contractor and not
as an employee of the Company or affiliate thereof. It is expressly understood
and agreed to by the parties that Brenner, and any individual or entity that
Brenner shall employ in order to perform its services hereunder, shall have no
authority to act for, represent or bind the Company or any affiliate thereof in
any manner, except as may be expressly agreed to by the Company in writing from
time to time.

         6. Entire Agreement

         This Agreement constitutes the entire understanding between the parties
with respect to the subject matter hereof and supersedes all prior agreements
and understandings, oral or written, with respect thereto. This Agreement may
not be modified or terminated orally or in any manner other than by an agreement
in writing signed by the parties hereto.

         7. Notices

         Any notices required or permitted to be given hereunder shall be in
writing and shall be deemed given when mailed by certified mail or private
courier service, return receipt requested, addressed to each party at its
respective addresses set forth above, or such other address as may be given by
either party in a notice given pursuant to this Section 7.

                                       2
<PAGE>

         8. Successors and Assigns

         This Agreement may not be assigned by either party without the written
consent of the other. This Agreement shall be binding upon and shall inure to
the benefit of the parties hereto and, except where prohibited, to their
successors and assigns.

         9. Non-Exclusivity

         Nothing herein shall be deemed to restrict or prohibit the engagement
by the Company of other consultants providing the same or similar services or
the payment by the Company of fees to such parties.

         10. Applicable Law

         This Agreement shall be construed and enforced in accordance with the
laws of the State of New York without giving effect to conflict of laws.

         11. Arbitration

         In the event of any dispute under this Agreement, then and in such
event, each party hereto agrees that the dispute shall be submitted to the
American Arbitration Association in Nassau County, New York, for its decision
and determination in accordance with its rules and regulations then in effect.
Each of the parties agrees that the decision and/or award made by the
Association may be entered as judgment of the courts of the State of New York,
as shall be enforceable as such.

         If the foregoing correctly sets forth the understanding between Brenner
and the Company with respect to the foregoing, please so indicate your agreement
by signing in the place provided below, at which time this letter shall become a
binding contract.

                                            HCFP/BRENNER SECURITIES, LLC.

                                            By: /s/ Ira Scott Greenspan
                                              ------------------------------
                                                    Ira Scott Greenspan
                                                    Vice Chairman

AGREED AND ACCEPTED BY:

GIGABEAM CORPORATION

By: /s/  Louis S. Slaughter
  ------------------------------
         Louis S. Slaughter
         Chief Executive Officer

                                       3

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00083-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00083-of-00352.parquet"}]]