FOURTH AMENDMENT TO CREDIT AGREEMENT            EXHIBIT 10.17c
 
THIS FOURTH AMENDMENT TO CREDIT AGREEMENT (this "Amendment"! 
is entered into as of September 14, 1995, by and between TCI 
International, Inc., a Delaware corporation ("TCI"), TECHNOLOGY 
FOR COMMUNICATIONS INTERNATIONAL, a California corporation 
("TCI International"), BR COMMUNICATIONS, A California corporation 
("BRC") (collectively "Borrowers" and individually "Borrower"), 
and WELLS FARGO BANK, NATIONAL ASSOCIATION ("Bank"). 
RECITALS 
 
WHEREAS, Borrower is currently indebted to Bank pursuant to 
the terms and conditions of that certain Credit Agreement between 
Borrower and Bank dated as of May 17, 1994, as amended from time 
to time ("Credit Agreement"). 
 
WHEREAS, Bank and Borrower have agreed to certain changes in 
the terms and conditions set forth in the Credit Agreement and 
have agreed to amend the Credit Agreement to reflect said 
changes. 
 
NOW, THEREFORE, for valuable consideration, the receipt and 
sufficiency of which are hereby acknowledged, the parties hereto 
agree that the Credit Agreement shall be amended as follows: 
 
1. Section 5.3. is hereby deleted in its entirety, and the 
 following substituted therefor:
 
SECTION:  5.3. OTHER INDEBTEDNESS. Create, 
incur, assume or permit to exist any 
indebtedness or liabilities resulting from 
borrowings, loans or advances, whether 
secured or unsecured, matured or unmatured, 
liquidated or unliquidated, joint or several, 
except (a) the liabilities of Borrower to 
Bank, (b) new purchase money obligations, (c) 
any other liabilities of Borrowers existing as of, 
and disclosed to Bank prior to, the date hereof, including 
an aggregate $3,000,000.00 in standby letter of credit 
facilities from other lending institutions, and (d) 
bonding by a surety in the maximum aggregate amount of $10,000. 
 
2.  Except as specifically provided herein, all terms and 
conditions of the Credit Agreement remain 
in full force and effect, without waiver or modification.  
All terms defined in the Credit Agreement shall 
have the same meaning when used in this Amendment.  
This Amendment and the Credit Agreement shall 
be read together, as one document. 
 
3.  Borrower hereby remakes all representations and warranties 
contained in the Credit Agreement 
and reaffirms all covenants set forth herein.  Borrower 
further certifies that as of the data of this 
Amendment there exists no Event of Default as defined in 
the Credit Agreement, nor any condition, act or 
event which with the giving of notice or the passage of 
time or both would constitute any such Event of 
Default. 
 
IN WITNESS WHEREOF, the parties hereto have caused this 
Amendment to be executed as of the day an 
year first written above. 

WELLS FARGO BANK, NATIONAL ASSOCIATION
By:  /s/ Sherrill Swan, Vice President

TCI INTERNATIONAL, INC.
By:  /s/ John W. Ballard, III, Vice President

TECHNOLOGY FOR COMMUNICATIONS INTERNATIONAL
By:  /s/ John W. Ballard, III, Vice President and General Manager

BR COMMUNICATIONS
By:  /s/ John W. Ballard, III, President