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                                  EXHIBIT 10.13

                                 PROMISSORY NOTE

    $112,660.00                                                 NOVEMBER 9, 2000

         FOR VALUE RECEIVED, R. Lee Hamilton, Jr. (the "Maker"), of Melbourne,
Florida, agrees to pay to the order of AIRNET COMMUNICATIONS CORPORATION
("Lender"), at Melbourne, Florida (or such other place as Lender shall
designate), the sum of One Hundred Twelve Thousand Six Hundred Sixty and 00/100
Dollars ($112,660.00), together with interest on unpaid principal from time to
time remaining unpaid at the rate of six and 1/100th percent (6.01%) per annum.

         This Note is being issued in connection with Lender's loan to Maker in
an amount equal to the amount previously paid by Maker to Lender for exercise of
stock options in February 2000 (the "Option Exercises") for the purchase of
113,274 shares of Lender's common stock (the "February 2000 Option Shares").

         The interest on this Note shall be payable semiannually. The entire
unpaid principal amount of this Note, together with all accrued and unpaid
interest and any other sums owing under this Note shall be payable in lawful
money of the United States of America at the Lender's principal office on the
5th anniversary of the date of this Note.

         In the event Maker sells, exchanges or otherwise transfers any of the
February 2000 Option Shares at a time when principal or other sums are owing
under this Note, Maker agrees to pay to Lender all proceeds from such sale (less
brokerage commissions and an amount equal to Maker's estimated federal income
tax liability with respect to such sale, exchange or transfer, taking into
account Maker's prior payment of the alternative minimum tax liability in
connection with the Option Exercises) (the "Required Payment"), up to an amount
which is necessary to pay off all indebtedness then outstanding under this Note.

         This Note is secured by a pledge and grant of a security interest in
the February 2000 Option Shares and any proceeds from the sale or transfer of
such shares in favor of Lender. Maker agrees to authorize and direct his broker
or brokers to deliver to Lender all Required Payments until such time as all
amounts owing under this Note are paid in full, and to execute all documentation
required in order to authorize and direct his broker or brokers to deliver all
Required Payments to Lender. Maker hereby authorizes Lender to direct Maker's
broker or brokers to remit such proceeds to Lender as are required to satisfy
all Required Payments. Such advice shall be provided within three (3) business
days of any request for instruction from Maker's broker. In the event Maker
transfers all or any portion of the February 2000 Option Shares for non-cash
consideration in connection with the sale of the Lender or merger with the
Lender through a stock for stock exchange, Maker hereby grants, and Lender shall
be deemed to have, a security interest in such non-cash property and the
application of the proceeds from the
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sale of such non-cash property shall be subject to the same terms and conditions
as are applicable to the sale or transfer of the February 2000 Option Shares.

         Any of the following events shall constitute an event of default under
this Note: (1) the failure of the Maker to make any required payment under this
Note when due; (2) the failure of the Maker to comply with or perform any
covenant or obligation under this Note; or (3) the Maker's filing of a voluntary
petition in bankruptcy or being adjudicated as bankrupt or insolvent. In the
event of default, the entire unpaid balance of this Note, at the option of the
Lender, shall become immediately due and payable, without notice or demand. The
Lender shall have full recourse against the Maker upon the occurrence of an
event of default.

         The Maker waives presentment for payment, protest and demand, and
notice of protest, demand and/or dishonor and nonpayment of this Note and all
other notices or demands otherwise required by law that the Maker may lawfully
waive.

         No modification or waiver or any provision of this Note or consent to
any departure by the Maker from the terms of this Note, shall in any event be
effective unless in writing, and then such waiver or consent shall be effective
only in the specific instance, and for the purpose, for which given.

         This Note shall be governed by, and construed and interpreted in
accordance with the laws of the State of Florida. In the event Lender determines
it is necessary to institute suit to collect on this Note, the action shall be
maintained in Brevard County, State of Florida, and the Maker hereby consents to
the institution of action in that jurisdiction and waives any and all defenses
it may have to the maintenance of the suit in Brevard County, Florida. In any
action to enforce any right or obligation under this Note, Maker and Lender
agree that the prevailing party shall be entitled to reimbursement of reasonable
attorneys' fees, expenses and court costs.

         MAKER HEREBY KNOWINGLY, VOLUNTARILY AND INTENTIONALLY WAIVES THE RIGHT
TO TRIAL BY JURY IN RESPECT OF ANY LITIGATION IN CONNECTION WITH THIS NOTE AND
ANY AGREEMENT EXECUTED OR CONTEMPLATED TO BE EXECUTED IN CONJUNCTION HEREWITH,
OR ANY COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS (WHETHER VERBAL OR
WRITTEN) OR ACTIONS OF EITHER THE LENDER OR MAKER.

         SIGNED AND DELIVERED as of this 12th day of November, 2000.

                                     MAKER:

                                     /s/ R. Lee Hamilton, Jr.
                                     -------------------------------------------
                                     R. Lee Hamilton, Jr.

                                        -2-<PAGE>   1
                                  EXHIBIT 10.14

                             AGREEMENT TO LOAN FUNDS

         THIS AGREEMENT to Loan Funds (this "Agreement") is entered into as of
the 22 day of December 2000, by and between AirNet Communications Corporation, a
Delaware corporation (the "Company"), and R. Lee Hamilton, Jr. ("Hamilton").

                               W I T N E S S E T H

         WHEREAS, Hamilton, the Company's President and Chief Executive Officer,
exercised certain Company stock options in February, 2000 (the "Option
Exercises") for the purchase of 113,274 shares of the Company's common stock
(the "February 2000 Option Shares"); and

         WHEREAS, Hamilton will be liable for federal income tax of
approximately $967,353 in connection with the Option Exercises as a result of
the application of the alternative minimum tax ("AMT") provisions under the
Internal Revenue Code, which alternative minimum tax liability (the "AMT
Liability") will be due and payable by Hamilton on April 15, 2001; and

         WHEREAS, the Company believes it to be in its best interest and a
benefit to the Company to make a non-recourse loan to Hamilton (the "Loan") in
an amount sufficient to satisfy the AMT Liability and other federal income tax
obligations related to the Loan contemplated by this Agreement; and
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         WHEREAS, the parties hereto desire to set forth their understanding
with respect to the terms under which the Company will make the Loan to
Hamilton.

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

         1. In the event Hamilton determines that the Loan is necessary in order
to satisfy the AMT Liability and requests that the Company make the Loan to him,
the Company agrees to loan Hamilton the sum of $995,133 on a non-recourse basis
pursuant to the terms of a Promissory Note (the "Note") in the form attached
hereto as Exhibit A.

         2. In connection with the Loan, Hamilton agrees to grant the Company a
security interest in the February 2000 Option Shares and to authorize and direct
his broker or brokers to deliver to Lender all Required Payments (as defined in
the Note) at such time as Hamilton's Note to the Company dated November 9, 2000
in the amount of $112,660 (the "November 2000 Note") is paid in full and until
such time as all amounts owing under the Note are paid in full, and to execute
all documentation required in order to perfect the Company's security interest
in the February 2000 Option Shares and to authorize and direct his broker or
brokers to deliver all Required Payments to the Company. The Company agrees that
it shall not, during the time in which the Note remains unpaid, adopt or impose
any rules or other restrictions which restrict or interfere with Hamilton's
right to sell the February 2000 Option Shares, except for rules which are also
imposed upon other officers or directors of the Company or which are required by
applicable state or federal securities laws or regulations.

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         3. Hamilton agrees that he will use the proceeds of the Loan solely for
the purpose of satisfying the AMT Liability and other federal income tax
obligations related to the Loan contemplated by this Agreement.

         4. Unless approved by the Company's Board of Directors, Hamilton agrees
that he will not gift, sale or otherwise transfer any of the February 2000
Option Shares at any time during which amounts remain due under the Note, except
for sales made into the public markets and transfers made in connection with a
sale or merger of the Company.

         5. All terms, covenants, representations, warranties and conditions of
this Agreement shall be binding upon, and inure to the benefit of and be
enforceable by, the parties hereto and their respective successors and assigns.

         6. All notices, requests, waivers and other communications required or
permitted to be given pursuant to this Agreement shall be in writing and shall
be deemed to have been duly given if delivered personally, given by prepaid
telegram or mailed registered or certified first-class mail, postage prepaid, as
follows:

         if to the Company:         AirNet Communications Corp.
                                    100 Rialto Place
                                    Suite 300
                                    Melbourne, FL  32901
                                    Attn: Chief Financial Officer

         With a copy to:            Edwards & Angell, LLP
                                    250 Royal Palm Way
                                    Suite 300
                                    Palm Beach, FL 33480
                                    Attn: John G. Igoe, Esq.

         if to Hamilton:            R. Lee Hamilton, Jr.
                                    420 Normandy Drive
                                    Indialantic, FL

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         7. The failure of any party at any time or times to require performance
of any provision hereof shall in no manner affect its right at a later time to
enforce the same. No waiver by any party of any condition or of any breach of
any term, covenant, representation or warranty contained in this Agreement shall
be effective unless in writing, and no waiver in any one or more instances shall
be deemed to be a further or continuing waiver of any such condition or breach
in other instances or a waiver of any other condition or breach of any other
term, representation or warranty.

         8. This Agreement may be executed in on or more counterparts, each of
which shall be deemed an original, but all of which together shall constitute
one and the same instrument.

         9. This Agreement shall be governed by and construed and enforced in
accordance with the laws of the State of Florida.

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

                             AIRNET COMMUNICATIONS CORPORATION

                             By: /s/ James W. Brown
                                 -----------------------------------------------
                             Name: James W. Brown
                                 -----------------------------------------------
                             Title:   Chairman
                                 -----------------------------------------------

                             R. LEE HAMILTON, JR.

                             /s/ R. Lee Hamilton, Jr.
                             ---------------------------------------------------

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