Volume 1
MIL-HDBK-162A
Section 1
15 December 1965
ITEM NAME: RADAR IDENTIFICATION SET
TYPE: AN/GPX-9, -9A, -9B
Trigger Input Characteristics (1500 pps):
level and receiver sensitivity are adequate for
Duration - 0.5 to 10 usec
interrogating and receiving replies from transponders
Amplitude - 20v (min)
operating within the detection range of the associated
Rise Time - 0.1 to 0.5 usec
radar. The AN/GPX-9 series may be independently
Decay Time - 0.2 usec (max)
operated to track targets equipped with a radar
Polarity - Positive
identification set.
The AN/GPX-9A decodes the
Pulse Repetition Rate - 300 pps
response from the transponder in the AN/APX-25. The
Operating Voltage and Power Requirements:
AN/GPX-9A and AN/GPX-9B represent changes in
115v ac, 55 to 65 cps, 97w
internal circuity only.
Code Coordinator KY-54/GPX
Pulse Output - paired 1-usec pulse used t
RELATION TO SIMILAR EQUIPMENT
key the radar recognition set.
None.
Pulse Spacing (between leading edges of
TECHNICAL DESCRIPTION
pulses): Mode 1, 3 usec; Mode 2, 5 use
Radar Recognition Set AN/UPX-6
Mode 3, 8 usec
Frequency: Transmitter, 1010 to 1030
Operating Voltage and Power Requirements:
mc; receiver 1090 to 1110 mc
115v ac, 55 to 65 cps, 1OOw
Power Output: 1.5 kw
Range Limitations: 200 mi (governed by
Duty Cycle: 0.15
Radar Recognition Set AN/UPX-6)
Operating Voltage and Power Requirements:
Heat Dissipation: 14.16 btu per
115v ac, 55 to 65 cps, 325w
Type of Presentation:
Electrical Synchronizer SN-159/GPX-9
Remote Site - 3 indicators, type
Trigger Input Characteristics:
OA-348/CPN-ltA (two with non-modified
Pulse Duration - 0.5 usec (min)
range of 53 mi and one modified for
Pulse Amplitude - 15v (min)
200 mi operation)
Rise Time - 0.1 to 0.5 usec
Transmitter Site - 1 indicator, type
Decay Time - 0.1 to 1.0 usec
OA-34t/CPN-ltA
Polarity - Positive
Voltage Requirements: 115v ac, 60 cps
Pulse Repetition Rate - 1500 pps
Coded Trigger Input Characteristics:
INSTALLATION CONSIDERATIONS
Pulse Duration - 0.7 to 1.2 usec
Siting: Radar Identification Set AN/GPX-is for use
Pulse Amplitude - 30 to 50v
with Radar Set AN/CPN-1lA only. The locations of
Rise Time - 0.2 usec(max)
the radar operating sites will in all cases be suitable
Decay Time - 0.i1 usec (max)
for the radar identification set.
Polarity - Positive
Mounting: Radar Recognition Set AN/UPX-6 and
PuPulse Repetition Rate - 300 pps
Pulse Form Restorer CN-343/GPN-9 are installed in
Pulse Spacing - Mode 1, 3 (plus or
shelter S-63/CPN-lt. Remote Switching Controls C-
minus 0.2 usec); Mode 2, 5 (plus
1690/GPX-9
and
C-1691/GPX-9,
Electrical
or minus 0.2 usec); Mode 3, to
Synchronizer SN-159/GPX-9, and Code Coordinator
(plus or minus 0.2 usec)
KY-54/GPX are installed at the remote site.
Trigger Output Characteristics:
Remainder of equipment is locate with the
Duration - 0.7 to 1.2 usec
associated radar.
Amplitude - 20v (min)
Cabling Requirements:
All necessary inter-
Rise Time - 0.2 usec (max)
component cabling for the radar identification set is
Decay Time - O.1, usec (max)
accomplished at the time initial installation is made;
Polarity - Positive
therefore, the operating activity need install no
Pulse Repetition Rate - 300 pps
cables.
Pre-Trigger - Variable between O and
Related Equipment:
Radar Identification Set
80 usec
AN/GPX-9 may be used with Radar Set AN/CPN-
Operating Voltage and Power Requirements:
18A.
115v ac, 55 to 65 cps, 152w
Pulse Form Restorer CN-343/GPX-9
AN/GPX-9: 2
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