MIL-HDBK-162A
Volume 1
15 December 1965
Section 2
DATE: 1 July 1964
ITEM NAME: RADAR EQUIPMENT
COGNIZANT SERVICE: USN
TYPE: AN/APX-1
FEDERAL STOCK NUMBER:
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
Mfg(s) Name or Code Number: Hazletine Electronics Corp., Little Neck, L.I., N.Y.
FUNCTIONAL DESCRIPTION
on the same screen with echo location of other craft.
This equipment combines all three basic elements
RELATION TO SIMILAR EQUIPMENT
of an IFF system within a common housing: (1) It
enables an aircraft to identify itself as friendly, or show
None.
distress, when challenged by other craft or ground
forces; (2) it is able to challenge other craft for
TECHNICAL DESCRIPTION
identification; and (3) it receives replies from those
equipped with AN/APX-3 or other IFF Mark III
Power Requirements: 115 vac 5%, 400 to 2400
Transponder equipment. Four methods of operation are
cps, 160w +10%; 26 vdc, 30w
possible: (1) Automatic operation of one band alone, or
two or three bands concurrently on a time sharing basis,
Interrogator-Responder - 160 to 184 mc
(2) interrogator-responder alone, (3) continuous
A-band - 157 to 187 mc
"Rooster" transponder operation alone or "Rooster"
G-band - 194 to 212 mc
transponder suppression on each interrogation and
R-band - 172 to 182 mc (modification required)
receptive period, and (4) transponder operation emitting
distress pulses, or emergency pulses sharing normal
INSTALLATION CONSIDERATIONS
operation of one or two other bands. Coupled with other
Not available.
radar equipment, the AN/APX-2 permits visual
identification
or
response
AN/APX-2: 1
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