MIL-HDBK-162A
Volume 1
15 December 1965
Section 1
DATE: 15 April 1964
ITEM NAME: RADIO INTERROGATOR SET
COGNIZANT SERVICE: USAF
TYPE: AN/GPX-18
FEDERAL STOCK NUMBER: 5895-342-9467-EG
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
ALT. STD
Mfg(s) Name or (:)de Number: Hazeltine Electronics Corporation
pulse emission and then waits for the coded response
FUNCTIONAL DESCRIPTION
from the AN/APX-6 transponder with which all friendly
aircraft are equipped. The coded response is picked up
Radar Identification Set AN/GPX-18 is used in
by this equipment, which then provides video for display
conjunction with search radar AN/FPS-8 or AN/MPS-11
on the radar indicator coordinated in range and azimuth.
for the purpose of identifying targets picked up by the
The interrogator
radar. This unit interrogates the target by means of
coded
AN/GPX-18: 1