EXHIBIT 10.10

PROMISSORY NOTE

$40,000.00 July 27, 2001

FOR VALUE RECEIVED, David L. Hattey (the "Borrower") promises to pay to the order of Transcrypt International, Inc., a Delaware corporation ("the
"Lender"), the principal sum of Forty Thousand Dollars ($40,000.00), with no interest (except as otherwise provided herein). Said principal amount shall be due and payable on or before July 27,
2004. Payments due hereunder shall be personally delivered by the Borrower to Lender at 4800 N.W. 1st Street, Lincoln, Nebraska 68521, or to such other address as Lender may designate in writing.

Payments
on the outstanding principal balance owed hereunder shall be paid by Borrower to Lender on or before the last day of March in calendar years 2002, 2003 and 2004. The amount of
each payment shall be equal to fifty percent (50%) of the amount of any bonus paid to Borrower by Lender not to exceed one third of the original principal in any give bonus, net of any applicable
standard taxes and/or deductions, in each such calendar year. Borrower hereby expressly authorizes the Lender to withhold and retain said amounts from any bonus to be paid to Borrower by Lender in
calendar years 2002, 2003 and 2004 for the purpose of applying said amounts toward payment and satisfaction of the obligations owed to Lender by Borrower hereunder. The entire remaining unpaid
principal balance owed hereunder shall be due and payable in a single lump sum on or before July 27, 2004.

Borrower
shall have the right to prepay the principal amount due hereunder at any time, in whole or in part, without penalty or premium; provided,however, any
partial prepayment shall not postpone the due date of any subsequent payment
contemplated hereunder.

Upon
the occurrence of any Event of Default (as hereinafter defined), the principal amount then due shall, from the date of such Event of Default, bear interest at an annual rate equal
to the then-current
one-year Treasury Bill interest rate as of the date of Default, as published inThe Wall Street Journal, until paid in full.

Borrower
acknowledges and agrees that an event of default shall be deemed to have occurred hereunder upon the occurrence of any one or more of the following events (an "Event of
Default"):



Upon
the occurrence of an Event of Default, the Lender may, at its option, declare the entire principal balance owing hereunder immediately due and payable, without further notice,
demand or presentment, all of which are hereby waived by the Borrower. Failure to exercise this option shall not

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constitute a waiver by the Lender of the right to exercise the same upon the occurrence of any subsequent Event of Default.

In
the event default is made in the prompt payment of any amount when due or declared due pursuant to this Promissory Note, and this Promissory Note is placed in the hands of an attorney
for collection or to defend or enforce any of the legal holder's rights hereunder, or if the same is collected through any judicial proceeding whatsoever, then Borrower, together with all other
parties liable for payment hereof, agrees to pay to the legal holder all professional fees, together with all court costs and expenses
incurred by such holder in connection with such proceeding, except to the extent such obligations are prohibited by law.

Borrower
hereby covenants and agrees to hold harmless and indemnify Lender, upon demand by Lender, from and against any and all costs, expenses, charges, taxes, penalties or other
liability of any nature imposed on or incurred by Lender relating to, resulting from or arising in connection with the loan to Borrower evidenced hereby, including, without limitation, any and all
costs, expenses and charges of any nature relating to the imputation of interest on amounts loaned to Borrower hereunder.

Borrower
hereby waives presentment and demand for payment, protest, notice of protest and nonpayment or dishonor, notice of acceleration and notice of intent to accelerate, diligence in
collecting and grace, and consents to all extensions, without notice for any period or periods of time and partial payments, before or after maturity hereof, without prejudice to the rights of the
Lender arising hereunder.

THIS
NOTE, AND ALL OTHER DOCUMENTS EXECUTED IN CONNECTION HEREWITH, REPRESENT THE FINAL AND ENTIRE AGREEMENT BETWEEN THE PARTIES PERTAINING TO THE SUBJECT MATTER HEREOF, AND MAY NOT BE
CONTRADICTED BY EVIDENCE OF PRIOR, SUBSEQUENT OR CONTEMPORANEOUS ORAL AGREEMENTS. THERE ARE NO ORAL AGREEMENTS BETWEEN THE PARTIES PERTAINING TO THE SUBJECT MATTER HEREOF.

This
Note shall be governed by and construed in accordance with the laws of the State of Nebraska.

This
Promissory Note and all provisions herein are binding upon Borrower and his heirs, personal representatives, executors and assigns, and shall inure to the benefit of Lender and its
successors and assigns. Borrower shall not assign any right or delegate any obligation arising hereunder without the prior written consent of Lender. Lender does not by any act, delay, omission or
otherwise waive any of its rights or remedies, and no waiver of any kind pertaining to the obligations arising hereunder shall be valid or enforceable against Lender unless such waiver is in writing
and signed by an authorized representative of Lender.

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IN
WITNESS WHEREOF, the Borrower has executed and delivered this Promissory Note on the date herein above first set forth.

|BORROWER:                         |  |       |  | 
|--------------------------------- |  | ----- |  | 
|/s/DAVID L. HATTEYDavid L. Hattey |  |       |  | 
|STATE OF MINNESOTA                |  | )     |  | 
|                                  |  | ) ss. |  | 
|COUNTY OF WASECA                  |  | )     |  | 

The
foregoing instrument was acknowledged before me this            day
of                        , 2001, by David L. Hattey.

| |  | Notary Public |  | 
| |  | ------------- |  | 

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