MIL-HDBK-162A
Volume 1
15 December 1965
Section 1
DATE: 15 December 1964
ITEM NAME: INTERROGATOR SET, RADIO
COGNIZANT SERVICE: USAF
TYPE: AN/GPX-18A
FEDERAL STOCK NUMBER: 5895-349-0038-EG
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
TS
Mfg(s) Name or Code Number: Hazeltine Electronics Corporation
provides identification friend or foe (IFF) and selective
FUNCTIONAL DESCRIPTION
identification feature (SIF) for Radar Sets AN/FPS-8 or
Radio Interrogator Set AN/GPX-18A operates with
AN/MPS-11. The AN/GPX-18A uses two interrogators.
an air borne transponder identification seat on any one
They alternately transmit coded rf pulses to trigger the
of 32 security identity (SI) codes, 400 personnel identity
airborne transponder identification set and convert the
(PI) codes, or 64 traffic identity (TI) modes. The set
received trans-
AN/GPX-18A: 1
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