AXP340 Transponder Installation Manual
10 March 2014
01201-00
Issue AF
Page 24
AVIDYNE CORPORATION
6.2.5
GPS Interface
The GPS interface check provides a simple confidence check that the transponder is receiving data on the
RS232 input. Note that this check does not attempt to decode the received data; it is intended only to
provide a quick wiring check in the hangar. To assure that the interface is fully operable the aircraft should
be tested with the transponder in normal operating mode, with the GPS receiver operating correctly, and a
ramp test of the transmitted parameters completed.