Document:

<PAGE>

                                                                   EXHIBIT 10.28

Press Release SOURCE: Omni Nutraceuticals, Inc. Omni's Balance Sheet Is
Improved Through Significant Lender Concessions LOS ANGELES, Nov. 1
/PRNewswire/ -- Omni Nutraceuticals, Inc. (Nasdaq: ZONE - news) today
announced that it has finalized negotiations with its lender, First Source
Financial, Inc., to amend both its term debt and revolving credit agreements.
In addition, the lender has waived any and all defaults currently in
existence. The major amendments include an increase in the availability of
the line up to the maximum credit limit of $7 million, an extension of both
the revolving and term debt agreements from April 30, 2001 to July 30, 2002
and an agreement to permit all of the recently closed equity financing to be
used for working capital purposes. In addition, it was agreed that all
principal payments due under the loan would be deferred until June 15, 2001.
The total of the deferred payments will be $1.75 million.

Klee Irwin, Omni's CEO commented, "We are delighted with the outcome of these
negotiations, which we think signals lender support of our business plan."
The additional cash availability and deferral of principal payments
significantly improves our working capital, which was negatively affected by
certain customer deductions recently taken relating to prior periods.
Fortunately however, this deferral of principal payments, along with the
extension of the term to 2002, reclassifies a significant portion of the term
loan to long-term debt and will help us meet our needs in reaching our
short-term goals."

Omni Nutraceuticals is a leading formulator and supplier of natural consumer
health products such as Diet System Six, Nature's Secret, Harmony Formulas, Dr.
Linus Pauling Vitamins, Inholtra and 151 Bar. The Company's products are sold
over the Internet and in health food stores, chain drug stores, supermarkets,
club and convenience stores worldwide.

Some information herein may be forward-looking and reflect management's view of
future events that involve risk or uncertainty. Some factors that could cause
actual results to differ materially include: economic conditions and
developments within the industry; competition and pricing pressures; length of
the sales cycle; and management continuity. CONTACT: John Liviakis of Liviakis
Financial Communications, Inc., 415-389-4670, or fax, 415-389-4694, or
moreinfo@lfcnet.com; Omni's corporate web site is at www.omninutra.com and
Omni's primary e-commerce web site is at www.healthshop.com. SOURCE: Omni
Nutraceuticals, Inc.

<PAGE>

                           WAIVER AND AMENDMENT NO. 4
                                       TO
                            SECURED CREDIT AGREEMENT

         THIS AMENDMENT NO. 4 TO SECURED CREDIT AGREEMENT (this "Amendment") is
entered into as of October 23, 2000 between Omni Nutraceuticals, Inc., a Utah
corporation formerly known as Irwin Naturals/4Health, Inc. ("Borrower"), the
Lenders (as hereinafter defined), and First Source Financial LLP, an Illinois
registered limited liability partnership acting in its capacity as Agent for the
Lenders (in such capacity, the "Agent").

                                  WITNESSETH:

         WHEREAS, Borrower, Agent and the financial institutions which are
parties thereto in their capacity as Lenders (the "Lenders") have entered into
that certain Secured Credit Agreement dated as of June 10, 1999 (as heretofore
amended, the "Agreement"); and

         WHEREAS, Borrower has requested that Agent and Lenders waive the Events
of Default existing under the Agreement which are listed on Schedule I annexed
hereto (the "Existing Events of Default"), and Agent and Lenders are willing to
do so on the terms and subject to the conditions hereinafter set forth; and

         WHEREAS, Borrower has requested that Agent and Lenders amend certain
provisions of the Agreement, and Agent and Lenders are willing to do so on the
terms and subject to the conditions hereinafter set forth;

         NOW, THEREFORE, in consideration of the premises set forth above, the
terms and conditions contained herein, and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged,
Agent, Lenders and Borrower hereby agree as follows:

         1. DEFINITIONS. Terms defined in the Agreement which are used herein
shall have the same meanings as set forth in the Agreement for such terms unless
otherwise defined herein.

         2. AMENDMENT TO AGREEMENT. Upon the occurrence of the Effective Time
(as defined in Section 4), the Agreement is hereby amended as follows:

         (A) The definition of the term "Borrowing Base" set forth in Section
1.1 of the Agreement is amended by adding the following to the end thereof
immediately before the period:

         plus (iii) the following amount for the calendar month for which the
         Borrowing Base is being calculated:

<PAGE>

<TABLE>
<CAPTION>

                Month:                       Amount:
            --------------                  ----------
            <S>                             <C>
            September 2000                  $3,400,000
            --------------                  ----------
            October 2000                    $4,150,000
            --------------                  ----------
            November 2000                   $4,200,000
            --------------                  ----------
            December 2000                   $4,300,000
            --------------                  ----------
            January 2001                    $4,300,000
            --------------                  ----------
            February 2001                   $4,300,000
            --------------                  ----------
            March 2001                      $4,200,000
            --------------                  ----------
            April 2001                      $4,200,000
            --------------                  ----------
            May 2001                        $4,200,000
            --------------                  ----------
            June 2001                       $4,100,000
            --------------                  ----------
            July 2001                       $4,100,000
            --------------                  ----------
            August 2001                     $4,050,000
            --------------                  ----------
            September 2001                  $4,050,000
            --------------                  ----------
            October 2001                    $4,000,000
            --------------                  ----------
            November 2001                   $3,950,000
            --------------                  ----------
            December 2001                   $3,950,000
            --------------                  ----------
            January 2002                    $4,050,000
            --------------                  ----------
            February 2002                   $4,150,000
            --------------                  ----------
            March 2002                      $4,050,000
            --------------                  ----------
            April 2002                      $4,050,000
            --------------                  ----------
            May 2002                        $4,050,000
            --------------                  ----------
            June 2002                       $3,950,000
            --------------                  ----------
            July 2002                       $3,950,000
            --------------                  ----------
</TABLE>

                                       2
<PAGE>

         (B) The definition of the term "Final Maturity Date" set forth in
Section 1.1 of the Agreement is amended by deleting the date "April 30, 2001"
contained therein and inserting in lieu thereof the date "July 30, 2002".

         (C) Section 2.5(a) of the Agreement is hereby amended and restated in
its entirety as follows:

                  (a) The aggregate principal balance of the Term Loans shall be
         payable by Borrower to Agent, for the benefit of Lenders, in
         installments as follows: (i) three (3) installments each of which shall
         be in the amount of $583,333 and which shall be payable on October 15,
         1999, January 21, 2000 and April 7, 2000, (ii) five (5) monthly
         installments each of which shall be in the amount of $194,444.34 and
         which shall be payable on the 15th day of each month, commencing May
         15, 2000 and continuing on the 15th day of each month thereafter
         through and including September 15, 2001, (iii) one (1) installment of
         $1,749,999.06 which shall be payable on June 15, 2001, (iv) thirteen
         (13) monthly installments each of which shall be in the amount of
         $194,444.34 and which shall be payable on the 15th day of each month,
         commencing July 15, 2001 and continuing on the 15th day of each month
         thereafter through and including July 15, 2002, and (v) one final
         installment on July 30, 2002 in an amount equal to the aggregate
         outstanding principal balance of the Term Loans.

         (D) The last sentence of Section 2.5(c) of the Agreement is hereby
amended and restated in its entirety as follows:

         As used herein, the term "Excluded Equity Sale Proceeds" shall mean
         Equity Sale Proceeds received by Borrower (i) after May 4, 2000 in an
         aggregate amount not to exceed $2,900,000 from American Equities, LLC,
         Liviakis Financial Communications, Inc., or John Liviakis or related
         entities or from any other Person that is satisfactory to Agent in its
         reasonable discretion, and provided that the terms of such Equity Sale
         are satisfactory to Agent in its sole discretion, and (ii) after
         October 20, 2000 in an aggregate amount not to exceed $2,800,000 from
         Astor Capital, Inc., or from any other Person that is satisfactory to
         Agent in its reasonable discretion, and provided that the terms of such
         Equity Sale are satisfactory to Agent in its sole discretion.

         (E) The first grammatical sentence of Section 4.5 of the Agreement is
hereby amended and restated in its entirety as follows:

         Accrued interest on each Prime Rate Loan shall be payable monthly in
         arrears on the fifteenth day of each month, and at maturity, commencing
         with November 15, 2000.

                                       3

<PAGE>

         (F) Section 5.7 of the Agreement is hereby is hereby amended and
restated in its entirety as follows:

                  SECTION 5.7 WAIVER/AMENDMENT FEE. Borrower shall pay to Agent
         for the benefit of Lenders a non-refundable waiver/amendment fee of
         $131,034 in six (6) monthly installments each of which shall be in the
         amount of $21,839 and which shall be payable on the 15th day of each
         month, commencing April 15, 2001 and continuing on the 15th day of each
         month thereafter through and including September 15, 2001. Any portion
         of this waiver/amendment fee which remains unpaid at the time of either
         prepayment in full of the Loans or termination of the Commitments
         hereunder for any reason shall be immediately due and payable or at
         Agent's discretion upon the occurrence of an Event of Default.

         (G) Sections 11.34(a), (b) and (c) of the Agreement are hereby amended
and restated in their entirety as follows:

                  (a) INTEREST COVERAGE RATIO. Not permit the Interest Coverage
         Ratio for any Fiscal Quarter ending on the dates set forth below to be
         less than the corresponding ratio set forth below:

<TABLE>
<CAPTION>

         ----------------------                      -----------------------
         Fiscal Quarter Ending:                      Minimum Ratio (to 1.0):
         ----------------------                      -----------------------
         <S>                                         <C>
         June 30, 2001                                        0.40
         ----------------------                      -----------------------
         September 30, 2001                                   1.25
         ----------------------                      -----------------------
         December 31, 2001                                    1.35
         ----------------------                      -----------------------
         March 31, 2002                                       1.50
         ----------------------                      -----------------------
         June 30, 2002                                        2.00
         ----------------------                      -----------------------
</TABLE>

                  (b) QUARTERLY EBITDA. Not permit EBITDA for any Fiscal
         Quarter ending on the dates set forth below to be less than the
         corresponding amount set forth below:

<TABLE>
<CAPTION>

        ----------------------                      -----------------------
        Fiscal Quarter Ending:                          Minimum Amount:
        ----------------------                      -----------------------
        <S>                                             <C>
        December 31, 2000                                  $650,000
        ----------------------                      -----------------------
        March 31, 2001                                     $475,000
        ----------------------                      -----------------------
        June 30, 2001                                      $625,000
        ----------------------                      -----------------------

                                        4

<PAGE>

        ----------------------                      -----------------------
        September 30, 2001                                 $675,000
        ----------------------                      -----------------------
        December 31, 2001                                  $750,000
        ----------------------                      -----------------------
        March 31, 2002                                     $550,000
        ----------------------                      -----------------------
        June 30, 2002                                      $750,000
        ----------------------                      -----------------------
</TABLE>

                  (c) CUMULATIVE EBITDA. Not permit EBITDA for any period
         consisting of four Fiscal Quarters (provided that such period shall be
         two Fiscal Quarters and three Fiscal Quarters for the periods ending
         December 31, 2000 and March 31, 2001, respectively) ending on the last
         day of each Fiscal Quarter set forth below to be less than the
         corresponding amount set forth below:

<TABLE>
<CAPTION>

         ----------------------                      -----------------------
         Fiscal Quarter Ending:                           Minimum Amount:
         ----------------------                      -----------------------
         <S>                                              <C>
         December 31, 2000                                 $  (325,000)
         ----------------------                      -----------------------
         March 31, 2001                                    $   250,000
         ----------------------                      -----------------------
         June 30, 2001                                     $   875,000
         ----------------------                      -----------------------
         September 30, 2001                                $ 2,450,000
         ----------------------                      -----------------------
         December 31, 2001                                 $ 2,550,000
         ----------------------                      -----------------------
         March 31, 2002                                    $ 2,600,000
         ----------------------                      -----------------------
         June 30, 2002                                     $ 2,750,000
         ----------------------                      -----------------------
</TABLE>

         (H) EXHIBIT A to the Agreement is hereby amended and restated in its
entirety as set forth on annexed EXHIBIT A.

         3. WAIVER. Upon the occurrence of the Effective Time (as defined in
Section 4) Lenders hereby waive the Existing Events of Default.

         4. CONDITIONS OF EFFECTIVENESS. The amendments herein shall become
effective (the "Effective Time") when and only when each of the following
conditions has been satisfied in a manner satisfactory in form and substance to
the Agent (or waived in writing by the Agent):

         (a) the representations and warranties made in the Agreement, as
     amended hereby, and in SECTION 5 hereof shall be true and correct as if
     made at the Effective Time;

                                       5

<PAGE>

         (b) Agent shall have received this Amendment, duly executed by
     Borrower;

         (c) Borrower shall have received at least $2,700,000 of Equity Sale
     Proceeds from the sale of preferred convertible stock to Astor Capital,
     Inc. prior to November 3, 2000 pursuant to documents, instruments and
     agreements satisfactory in form and substance to the Agent and Lenders;
     and

         (d) Agent has received from Borrower pro forma financial statements
     and projections through July 31, 2002, acceptable in form and substance
     to the Agent, taking into account the terms and conditions of this
     Amendment.

         5. REPRESENTATIONS AND WARRANTIES, ETC.

         (a) Borrower represents and warrants to Agent and Lenders that: (i)
Borrower has all necessary power and authority to execute and deliver each of
this Amendment and the Agreement, as amended hereby, and perform its obligations
hereunder and thereunder; (ii) the execution, delivery and performance of each
of this Amendment and the Agreement, as amended hereby, has been duly authorized
by Borrower; (iii) each of this Amendment and the Agreement, as amended hereby
constitute the legal, valid and binding obligations of Borrower and are
enforceable against Borrower in accordance with their terms; (iv) all
representations and warranties of Borrower contained in the Agreement, as
amended hereby, and all other Related Documents are true and correct as of the
Effective Time after giving effect to this Amendment; and (v) except for the
Existing Events of Default, no Event of Default or Unmatured Event of Default
has occurred and is continuing or will occur after giving effect to this
Amendment.

         (b) Upon the Effective Time, Borrower hereby reaffirms all covenants,
representations and warranties made in the Agreement, as amended hereby, and
agrees that all such covenants, representations and warranties shall be deemed
to have been remade as of the Effective Time and that the Agreement, as amended
hereby, remains in full force and effect.

         6. RELEASE. Borrower, for itself and its subsidiaries, shareholders and
affiliates and the successors, assigns, heirs and representatives of each of the
foregoing (collectively, the "Borrower Group") does hereby fully, finally and
unconditionally release and forever discharge each of the Agent, each Lender and
each of their respective shareholders, affiliates, agents, attorneys, employees,
directors, and officers, and the successors, assigns, heirs and representatives
of each of the foregoing, from any and all debts, claims, obligations, damages,
costs, attorneys' fees, suits, demands, liabilities, actions, proceedings and
causes of action, in each case whether known or unknown, contingent or fixed,
direct or indirect and of whatever nature or description and whether in law or
in equity under contract, tort, statute or otherwise (collectively, "Claims"),
which any of the Borrower Group has heretofore had or now or hereafter can,
shall or may have by reason of any act, omission or thing whatsoever done or
omitted to be done on or prior to the date hereof, including, without
limitation, any and all such Claims arising out of or related in any way to the
Agreement, this Amendment or any Related Document, or any act, event or
transaction related or

                                       6

<PAGE>

attendant thereto, the agreements of Agent and each Lender contained therein,
the possession, use, operation or control of any of the assets of Borrower or
any of its Subsidiaries, the making of any Loans or any other advances, or the
management of such Loans or advances or the Collateral.

         7. REFERENCE TO THE EFFECT ON THE AGREEMENT.

         (a) Upon the Effective Time, (i) each reference in the Agreement to
"this Agreement," "hereunder," "hereof," "herein" or words of like import shall
mean and be a reference to the Agreement as amended hereby, and (ii) each
reference to the Agreement in all other Related Documents shall mean and be a
reference to the Agreement, as amended hereby.

         (b) Except as specifically amended above, the Agreement, and all other
Related Documents, shall remain in full force and effect and are hereby ratified
and confirmed.

         (c) The execution, delivery and effectiveness of this Amendment shall
not, except as expressly provided herein, operate as an amendment to any
provision of the Agreement nor a waiver of any right, power or remedy of Agent
or any Lender, nor constitute a waiver of, or consent to any departure from, any
provision of the Agreement or any other Related Document. Except as expressly
provided herein, this Amendment shall not operate as a waiver of any Event of
Default or Unmatured Event of Default that has occurred and is continuing on the
date hereof or limit Agent's or any Lender's rights, power or remedies under the
Agreement in respect of any such Event of Default or Unmatured Event of Default.

         8. SEVERABILITY. The provisions of this Amendment shall be deemed
independent and severable, and a determination of invalidity or partial
invalidity or unenforceability of any one provision or portion thereof by a
court of competent jurisdiction shall not affect the validity or enforceability
of any other provision hereof.

         9. GOVERNING LAW. This Amendment shall be governed by and construed in
accordance with the internal laws (as opposed to conflicts of law provisions) of
the State of Illinois.

         10. HEADINGS. Section headings in this Amendment are included herein
for convenience of reference only and shall not constitute a part of this
Amendment for any other purpose.

         11. COUNTERPARTS, ETC. This Amendment may be executed by one or more of
the parties to this Amendment on any number of separate counterparts and all of
said counterparts taken together shall be deemed to constitute one and the same
instrument. Delivery of a duly executed counterpart copy of this Amendment may
be made by telecopy.

                            [Signature page follows]

                                       7

<PAGE>

         IN WITNESS WHEREOF, this Amendment has been duly executed as of the day
and year above written.

OMNI NUTRACEUTICALS, INC.                    FIRST SOURCE FINANCIAL LLP,
                                               as Agent and Lender
                                             By: First Source Financial, Inc.
                                             Its: Manager

By:________________________

Title:_____________________

                                             By:__________________________

                                             Title: ______________________

<PAGE>

                                   EXHIBIT A

                       Form of Borrowing Base Certificate

                                  See Attached

<PAGE>

                                   SCHEDULE I

1.       Events of Default arising as a result of breaches of Sections 11.34(a),
         (b) and (c) of the Agreement occurring as of September 30, 2000.<PAGE>

                                                                    Exhibit 10.1

                     FIFTH AMENDMENT TO FINANCING AGREEMENT

         THIS FIFTH AMENDMENT TO FINANCING AGREEMENT (this "Agreement") is made
as of the 28th day of September, 2000, by TESSCO TECHNOLOGIES INCORPORATED
(sometimes referred to herein as the "Parent"), a corporation organized under
the laws of the State of Delaware, TESSCO COMMUNICATIONS INCORPORATED, a
corporation organized under the laws of the State of Delaware, TESSCO
INCORPORATED, a corporation organized under the laws of the State of Delaware,
TESSCO FINANCIAL CORPORATION, a corporation organized under the laws of the
State of Delaware, WIRELESS SOLUTIONS INCORPORATED, a corporation organized
under the laws of the State of Maryland, (each of the foregoing corporations,
jointly and severally, collectively, the "Original Borrower") and CARTWRIGHT
COMMUNICATIONS COMPANY, a corporation organized under the laws of the State of
Delaware ("Cartwright"), jointly and severally (the Original Borrower and
Cartwright collectively, the "Borrower"), and BANK OF AMERICA, N.A., a national
banking association, formerly "NationsBank, N.A.," its successors and assigns
(the "Lender").

                                    RECITALS

         A. The Borrower, NATIONAL AIRTIME CORPORATION, a corporation organized
under the laws of the State of Delaware ("NAC"), and the Lender are parties to a
Financing Agreement dated March 31, 1995 (the same as amended by First Amendment
to Financing Agreement dated September 26, 1996 (the "First Amendment"), by
Second Amendment to Financing Agreement dated February 28, 1997 (the "Second
Amendment"), by Third Amendment to Financing Agreement dated June 13, 1997 (the
"Third Amendment"), by Fourth Amendment to Financing Agreement dated September
30, 1999 (the "Fourth Amendment"), and as amended, modified, substituted,
extended, and renewed from time to time, the "Financing Agreement"). The
Financing Agreement provides for some of the agreements between the Borrower and
the Lender with respect to the "Loans" (as defined in the Financing Agreement),
including the Revolving Credit Facility (as that term is defined in the
Financing Agreement) in an amount not to exceed $15,000,000.

         B. The Borrower has advised the Lender that NAC has ceased operations,
has no assets, has no liabilities other than the Obligations under the Financing
Agreement, has allowed its charter to lapse, and has no intention of reviving
its charter.

         C. The Borrower has requested that the Lender extend the maturity of
the Borrower's Revolving Credit Facility from September 30, 2002 to September
30, 2003, increase the maximum amount of the Borrower's Revolving Credit
Facility from $15,000,000 to $30,000,000, and amend certain provisions of the
Financing Agreement. The Borrower has also requested that the Loan Agreement be
amended to delete NAC from the definition of "Original Borrower" and "Borrower."

         D. The Lender is willing to agree to the Borrower's on the condition,
among others, that this Agreement be executed and delivered.

<PAGE>

         E. The Borrower and the Lender wish to amend the Financing Agreement as
set forth below.

                                   AGREEMENTS

         NOW, THEREFORE, in consideration of the premises and for other good and
valuable consideration, receipt of which is hereby acknowledged, the Borrower
and the Lender agree as follows:

     1. The Borrower and the Lender agree that the Recitals above are a part
of this Agreement. Unless otherwise expressly defined in this Agreement, terms
defined in the Financing Agreement shall have the same meaning under this
Agreement.

     2. The Borrower represents and warrants to the Lender as follows:

         (a) Each of the Borrower and its Subsidiaries (i) is a corporation duly
organized, existing and in good standing under the laws of the jurisdiction of
its incorporation, (ii) has the corporate power to own its property and to carry
on its business as now being conducted, and (iii) is duly qualified to do
business and is in good standing in each jurisdiction in which the character of
the properties owned by it therein or in which the transaction of its business
makes such qualification necessary, except to the extent that the failure of
such qualification shall not have a material adverse affect on the Borrower;

         (b) The Borrower has full corporate power and authority to execute and
deliver this Agreement and the other Financing Documents to which it is a party,
to make the borrowings under this Agreement, and to incur and perform the
Obligations whether under this Agreement, the other Financing Documents or
otherwise, all of which have been duly authorized by all proper and necessary
corporate action; and

         (c) The Financing Agreement, as amended by this Agreement, and each of
the other Financing Documents to which the Borrower is a party remain in full
force and effect, and each constitutes the valid and legally binding obligation
of Borrower, enforceable in accordance with its terms.

         (d) All of Borrower's representations and warranties contained in the
Financing Agreement and the other Financing Documents to which the Borrower is a
party are true and correct on and as of the date of Borrower's execution of this
Agreement; and

         (e) No Event of Default and no event which, with notice, lapse of time
or both would constitute and Event of Default, has occurred and is continuing
under the Financing Agreement or the other Financing Document which has not been
waived in writing by the Lender.

         (f) NAC has ceased operations, has no assets, has no liabilities other
than the Obligations under the Financing Agreement, has allowed its charter to
lapse and has no intention of reviving its charter.

                                       2
<PAGE>

     3. The Financing Agreement is hereby amended as follows:

         (a) NAC is hereby deleted from the definition of "Original Borrower"
and "Borrower" under the Financing Agreement. NAC shall no longer be a maker
under the Revolving Credit Note.

         (b) The definition of "Revolving Credit Expiration Date" contained in
Section 1.1 of the Financing Agreement is hereby amended in its entirety as
follows:

               "REVOLVING CREDIT EXPIRATION DATE" MEANS SEPTEMBER 30, 2003.

         (c) Section 2.1.1 of the Financing Agreement is hereby deleted and the
following is substituted therefor

               2.1.1 REVOLVING CREDIT FACILITY. SUBJECT TO AND UPON THE
          PROVISIONS OF THIS AGREEMENT, THE LENDER ESTABLISHES A REVOLVING
          CREDIT FACILITY (THE "REVOLVING CREDIT FACILITY") IN FAVOR OF THE
          BORROWER. THE AGGREGATE OF ALL ADVANCES UNDER THE REVOLVING CREDIT
          FACILITY ARE SOMETIMES REFERRED TO IN THIS AGREEMENT COLLECTIVELY AS
          THE "REVOLVING LOAN". THE "REVOLVING CREDIT COMMITTED AMOUNT" MEANS
          $30,000,000.00. PROVIDED, HOWEVER, IN NO EVENT SHALL THE LENDER
          CONSIDER ANY REQUEST FOR A REVOLVING LOAN IF AFTER GIVING EFFECT TO
          THE BORROWER'S REQUEST, THE OUTSTANDING PRINCIPAL BALANCE OF THE
          REVOLVING LOAN AND OF THE LETTER OF CREDIT OBLIGATIONS WOULD EXCEED
          THE REVOLVING CREDIT COMMITTED AMOUNT.

         (d) Section 2.1.3 of the Financing Agreement is hereby amended in its
entirety as follows:

               2.1.3 REVOLVING CREDIT NOTE. THE OBLIGATION OF THE BORROWER TO
          PAY THE REVOLVING LOAN WITH INTEREST SHALL BE EVIDENCED BY A
          PROMISSORY NOTE (AS FROM TIME TO TIME EXTENDED, AMENDED, RESTATED,
          SUPPLEMENTED OR OTHERWISE MODIFIED, THE "REVOLVING CREDIT NOTE")
          SUBSTANTIALLY IN THE FORM OF EXHIBIT "A" ATTACHED HERETO AND MADE A
          PART HEREOF, WITH APPROPRIATE INSERTIONS. THE REVOLVING CREDIT NOTE
          SHALL BE DATED AS OF SEPTEMBER 28, 2000, SHALL BE PAYABLE TO THE ORDER
          OF THE LENDER AT THE TIMES PROVIDED IN THE REVOLVING CREDIT NOTE, AND
          SHALL BE IN THE PRINCIPAL AMOUNT OF $30,000,000. THE BORROWER
          ACKNOWLEDGES AND AGREES THAT, IF THE OUTSTANDING PRINCIPAL BALANCE OF
          THE REVOLVING LOAN OUTSTANDING FROM TIME TO TIME EXCEEDS THE FACE
          AMOUNT OF THE REVOLVING CREDIT NOTE, THE EXCESS SHALL BEAR INTEREST AT
          THE RATES PROVIDED FROM TIME TO TIME FOR ADVANCES UNDER THE REVOLVING
          LOAN EVIDENCED BY THE REVOLVING CREDIT NOTE AND SHALL BE PAYABLE, WITH
          ACCRUED INTEREST, ON DEMAND. THE REVOLVING CREDIT NOTE SHALL NOT
          OPERATE AS A NOVATION OF ANY OF THE OBLIGATIONS OR NULLIFY, DISCHARGE,
          OR RELEASE ANY SUCH OBLIGATIONS OR THE CONTINUING CONTRACTUAL
          RELATIONSHIP OF THE PARTIES HERETO IN ACCORDANCE WITH THE PROVISIONS
          OF THIS AGREEMENT. THE REVOLVING CREDIT NOTE SHALL EVIDENCE THE
          BORROWER'S OBLIGATION TO REPAY, WITH INTEREST, THE AUTOBORROW ADVANCES
          AS WELL AS OTHER ADVANCES.

                                       3
<PAGE>

         (e) Section 2.1.5 of the Financing Agreement is hereby deleted in its
entirety and substituted therefor is the following:

               2.1.5 REVOLVING CREDIT UNUSED LINE FEE. The Borrower shall pay to
          the Lender a quarterly revolving credit facility fee (collectively,
          the "Revolving Credit Unused Line Fees" and individually, a "Revolving
          Credit Unused Line Fee") based on the average daily unused and
          undisbursed portion of the of the Revolving Credit Committed Amount in
          effect from time to time accruing during each calendar quarter, (a) at
          a rate equal to one-eighth of one percent (0.125%) per annum on such
          unused and undisbursed portion up to and including $10,000,000, and
          (b) at a rate equal to one-quarter of one percent (0.25%) per annum on
          such unused and undisbursed portion in excess of $10,000,000.

         (f) Section 5.15 of the Financing Agreement is hereby amended in its
entirety as follows:

               5.1.15 NET WORTH. COMMENCING OCTOBER 1, 2000, THE BORROWER WILL
          AT ALL TIMES MAINTAIN A NET WORTH OF NOT LESS THAN $39,000,000. THE
          NET WORTH REQUIREMENT OF THIS SECTION SHALL BE INCREASED AT THE END OF
          EACH FISCAL QUARTER, COMMENCING SEPTEMBER 30, 2001, BY 50% OF THE
          BORROWER'S NET INCOME (WITHOUT REGARD TO ANY LOSS) FROM THE
          IMMEDIATELY PRECEDING FISCAL QUARTER.

     4. Borrower hereby ratifies and confirms the representations,
warranties and covenants contained in the Financing Agreement, as amended
hereby. The Borrower agrees that this Agreement is not intended to and shall not
cause a novation with respect to any or all of the Obligations.

     5. The Borrower shall pay at the time this Agreement is executed and
delivered all fees, commissions, searches, costs, charges, taxes and other
expenses incurred by the Lender and its counsel in connection with this
Agreement, including, but not limited to, reasonable fees and expenses of the
Lender's counsel.

     6. This Agreement may be executed in any number of duplicate originals
or counterparts, each of such duplicate originals or counterparts shall be
deemed to be an original and all taken together shall constitute but one and the
same instrument. The parties agree that their respective signatures may be
delivered by facsimile. Any party who chooses to deliver its signature by
facsimile agrees to provide a counterpart of this Agreement with its inked
signature promptly to each other party.

         IN WITNESS WHEREOF, the Borrower and the Lender have executed this
Agreement under seal as of the date and year first written above.

         SIGNATURES TO THIS AGREEMENT BEGIN ON THE FOLLOWING PAGE

                                       4
<PAGE>

                            Signature Page 1 of 3 to

                     FIFTH AMENDMENT TO FINANCING AGREEMENT

WITNESS:                          TESSCO TECHNOLOGIES INCORPORATED

/S/ ROBERT C. SINGER              By: /S/ ROBERT B. BARNHILL, JR.      (Seal)
                                      ---------------------------------
                                      Robert B. Barnhill, Jr.
                                      President and Chief Executive Officer

WITNESS:                          TESSCO COMMUNICATIONS INCORPORATED

/S/ ROBERT C. SINGER              By: /S/ ROBERT B. BARNHILL, JR.      (Seal)
--------------------------           ---------------------------------
                                      Robert B. Barnhill, Jr.
                                      President and Chief Executive Officer

WITNESS:                           TESSCO INCORPORATED

/S/ ROBERT C. SINGER               By: /S/ ROBERT B. BARNHILL, JR.     (Seal)
--------------------------            ---------------------------------
                                       Robert B. Barnhill, Jr.
                                       President and Chief Executive Officer

WITNESS:                          TESSCO FINANCIAL CORPORATION

/S/ ROBERT C. SINGER              By: /S/ ROBERT B. BARNHILL, JR.      (Seal)
--------------------------           ---------------------------------
                                      Robert B. Barnhill, Jr.
                                      President and Chief Executive Officer

<PAGE>

                            Signature Page 2 of 3 to

                     FIFTH AMENDMENT TO FINANCING AGREEMENT

WITNESS:                          WIRELESS SOLUTIONS INCORPORATED

/S/ ROBERT C. SINGER              By: /S/ ROBERT B. BARNHILL, JR.      (Seal)
--------------------------           ---------------------------------
                                      Robert B. Barnhill, Jr.
                                      President and Chief Executive Officer

WITNESS:                          CARTWRIGHT COMMUNICATIONS COMPANY

/S/  ROBERT C. SINGER             By: /S/ ROBERT B. BARNHILL, JR.      (Seal)
--------------------------           ---------------------------------
                                      Robert B. Barnhill, Jr.
                                      President and Chief Executive Officer

<PAGE>

                            Signature Page 3 of 3 to

                     FIFTH AMENDMENT TO FINANCING AGREEMENT

WITNESS:                            BANK OF AMERICA, N. A.

/S/                                 By:  /S/ JAMES W. GAITTENS         (Seal)
--------------------------               -------------------------------
                                         James W. Gaittens
                                         Senior Vice President

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00016-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00016-of-00352.parquet"}]]