MIL-HDBK-162A
Volume 1
15 December 1965
Section 1
DATE: 15 April 1964
ITEM NAME: INTERROGATOR SET
COGNIZANT SERVICE: USAF
TYPE: AN/GPX-20B
FEDERAL STOCK NUMBER: 5895-574-0386-EG
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
AS
Mfg(s) Name or Code Number: Bendix Radio Corporation, Bell Aerospace Corporation
The AN/GPX-20B receives the transponder replies and
FUNCTIONAL DESCRIPTION
after decoding furnishes them to the associated radar
indicator in the form of video pulses. Its narrow beam
Interrogator Set AN/GPX-20B is used for
width interrogation is synchronized with that of the radar
identification of friendly targets on Radar Set AN/MPS-
in azimuth and time thus
7. The AN/GPX-20B transmits coded radio frequency
pulses to trigger transponders of Transponder Set
AN/APX-25 carried by friendly aircraft to be identified.
AN/GPX-20B: 1
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