• Version
• 164 Downloads
• 8.49 MB File Size
• 1 File Count
• March 5, 2017 Create Date
• March 5, 2017 Last Updated

Organizational Intermediate & Depot Maintenance Instructions with Illustrated Parts Breakdown; Test Set, Transponder Set TS-1843B/APX

SCOPE OV T ECH 
This technical manual contains instructions and 
procedures to be used by Intermediate and Depot 
activities in the maintenance and repair of Test Set, 
Transponder Set r 
designedand manu- 
factured by ASC Systems Corporation, Chicago, 
Illinois under contract F33657-71-C-0175. The 
equipment covered herein is configured for inter- 
service DOD AIMS System use. Any changes affect- 
ing form, fit, or function Shall be by Configuration 
Control Board Directive only. The technical manual 
may be revised by or for the procuring activity With- 
out approval of the DOD AIMS Configuration Control 
Board in the following instances, providing form, fit, 
or function is not affected: 
a. When the changes consist of clarifying, expand - 
ing, connecting or ulxiating existing information in 
the technical manual. 
b. When the item described in the technical manual 
no longer available, and a substitute item must be 
NOTE 
When empty parentheses are used in the 
nomenclature Of equipment used (as in 
C-6280( )/APX) this means that any mod- 
el of the equipment may be used. 
PURPOSE OV E QUI 
Test Set, Transponder Set 
in-flight GO/NO-GO test device, designed for instal- 
lation in airborne IFF/SIF (Identification Friend or 
Foe/Selective Identification Feature) transponde r 
systems. The test set has two operational modes: 
Test and Monitor. The 
provides an 
operating voltage to an indicator lamp on the associ- 
ated Transponder Set Control C-6280( )/APX (or 
equivalent) to give a visual GO/ NO-GO indication of 
the status of the transponder. 
In the Test mode of operation, the 
APX generates, upon command, rf interrogation test 
at a preset power level which enable the 
'erator to check the response of his transponder set 
n the absence of external interrogation signals. 
In the Monitor of operation, the test set 
'Ontinuously and automatically evaluates the SIF 
eplies being transmitted by the associated transpon- 
der on a reply -by -reply basis when it receives IFF 
interrogation signals from an interrogator set.