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                       FOURTH LOAN MODIFICATION AGREEMENT

     This Fourth Loan Modification Agreement (this "Loan Modification
Agreement") is entered into as of September 24, 2004, by and between SILICON
VALLEY BANK, a California-chartered bank, with its principal place of business
at 3003 Tasman Drive, Santa Clara, California 95054 and with a loan production
office located at One Newton Executive Park, Suite 200, 2221 Washington Street,
Newton, Massachusetts 02462, doing business under the name "Silicon Valley East"
("Bank") and GLOBECOMM SYSTEMS INC., a Delaware corporation, with offices at 45
Oser Avenue, Hauppauge, New York 11788 and NETSAT EXPRESS, INC., a Delaware
corporation with offices at 45 Oser Avenue, Hauppauge, New York 11788 (jointly
and severally, "Borrower").

1.   DESCRIPTION OF EXISTING INDEBTEDNESS AND OBLIGATIONS. Among other
     indebtedness and obligations which may be owing by Borrower to Bank,
     Borrower is indebted to Bank pursuant to a loan arrangement dated as of
     September 15, 2003, evidenced by, among other documents, a certain
     Export-Import Bank Loan and Security Agreement dated as of September 15,
     2003 between Borrower and Bank (as amended, the "Loan Agreement").
     Capitalized terms used but not otherwise defined herein shall have the same
     meaning as in the Loan Agreement.

2.   DESCRIPTION OF COLLATERAL. Repayment of the Obligations is secured by the
     Collateral as described in the Loan Agreement (together with any other
     collateral security granted to Bank, the "Security Documents").

          Hereinafter, the Security Documents, together with all other documents
     evidencing or securing the Obligations shall be referred to as the
     "Existing Loan Documents".

3.   DESCRIPTION OF CHANGE IN TERMS.

     Modification to Loan Agreement.

     a.   The "Maturity Date" set forth in Loan Agreement is hereby amended by
          deleting the following text appearing in Section 4 of the Schedule to
          the Loan Agreement:

                    "September 14, 2004"

                    and in inserting the following in lieu thereof:

                    "October 31, 2004"

4.   FEES. Borrower shall reimburse the Bank for all legal fees and expenses
     incurred in connection with this amendment to the Existing Loan Documents.

5.   RATIFICATION OF NEGATIVE PLEDGE AGREEMENT. Borrower hereby ratifies,
     confirms, and reaffirms, all and singular, the terms and conditions of a
     certain Negative Pledge Agreement delivered to the Bank dated September 15,
     2003.

6.   RATIFICATION OF PERFECTION CERTIFICATE. Borrower hereby ratifies, confirms,
     and reaffirms, all and singular, the terms and disclosures contained in a
     certain Perfection Certificate delivered to the Bank on or about September
     15, 2003, and acknowledges, confirms and agrees the disclosures and
     information provided therein has not changed, as of the date hereof.

7.   CONSISTENT CHANGES. The Existing Loan Documents are hereby amended wherever
     necessary to reflect the changes described above.

8.   RATIFICATION OF LOAN DOCUMENTS. Borrower hereby ratifies, confirms, and
     reaffirms all terms and conditions of all security or other collateral
     granted to the Bank, and confirms that the indebtedness secured thereby
     includes, without limitation, the Obligations.

9.   NO DEFENSES OF BORROWER. Borrower hereby acknowledges and agrees that
     Borrower has no offsets, defenses, claims, or counterclaims against the
     Bank with respect to the Obligations, or otherwise, and that if Borrower
     now has, or ever did have, any offsets, defenses, claims, or counterclaims
     against the Bank, whether known or unknown, at law or in equity, all of
     them are hereby expressly WAIVED and Borrower hereby RELEASES the Bank from
     any liability thereunder.

10.  CONTINUING VALIDITY. Borrower understands and agrees that in modifying the
     existing Obligations, Bank is relying upon Borrower's representations,
     warranties, and agreements, as set forth in the Existing Loan Documents.
     Except as expressly modified pursuant to this Loan Modification Agreement,
     the terms of the Existing Loan Documents remain unchanged and in full force
     and effect. Bank's agreement to modifications to the existing Obligations
     pursuant to this Loan Modification Agreement in no way shall obligate Bank
     to make any future modifications to the Obligations. Nothing in this Loan
     Modification Agreement shall constitute a satisfaction of the Obligations.
     It is the intention of Bank and Borrower to retain as liable parties all
     makers of Existing Loan Documents, unless the party is expressly released
     by Bank in writing. No maker will be released by virtue of this Loan
     Modification Agreement.

11.  COUNTERSIGNATURE. This Loan Modification Agreement shall become effective
     only when it shall have been executed by Borrower and Bank.

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     This Loan Modification Agreement is executed as a sealed instrument under
the laws of the Commonwealth of Massachusetts as of the date first written
above.

                                                 BORROWER:

                                                 GLOBECOMM SYSTEMS INC.

                                                 By: /s/ Andrew C. Melfi
                                                     ---------------------------

                                                 Name: Andrew C. Melfi
                                                 Title: VP and CFO

                                                 NETSAT EXPRESS, INC.

                                                 By: /s/ Andrew C. Melfi
                                                     ---------------------------

                                                 Name: Andrew C. Melfi
                                                 Title: VP and CFO

                                                 BANK:

                                                 SILICON VALLEY BANK, d/b/a
                                                 SILICON VALLEY EAST

                                                 By: /s/ Naomi B. Herman
                                                     ---------------------------

                                                 Name: Naomi B. Herman
                                                 Title: Vice President
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