Volume 1
MIL-HDBK-162 A
Section 1
15 December 1965
ITEM NAME: RADIO INTERROGATOR SET
TYPE: AN/GPX-18
associated radar).
output level and receiver sensitivity are adequate for
Pulse Width: 1 usec
interrogating and receiving replies from transponders
Number of Modes: 3
operating within the detection range of the associated
Antenna Type: Reflection-type antenna of associated
radar. The AN/GPX-18 may be independently operated
radar.
to track targets equipped with a radar identification set.
Horizontal Beam Width: 3 deg
Vertical Beam Width: 10 deg
RELATION TO SIMILAR EQUIPMENT:
Frequency (if.): 60 mc
Broadband Bandwidth: 8 to 11 mc (-6 db).
AN/GPX-18A is similar to and interchangeable with
Narrowband Bandwidth: 5 mc (-70 db).
Interrogator Set AN/GPX-18, the difference being the
AN/GPX-18A also decodes the response for
INSTALLATION CONSIDERATIONS:
Transponder Set AN/APX-25.
Siting: Dependent on physical location of associated
TECHNICAL DESCRIPTION:
radar.
Frequency: Transmitting, 990 to 1040 mc
Mounting:
Components of this equipment are
Receiving, 1080 to 1130 mc
installed on the associated radar.
Range: Range of associated radar.
Peak Power Output: 1.5 kw min
Cabling Requirements: Interconnecting facilities are
Type of Presentation: PPI's of
furnished as part of Radar Set AN/FPS-8 or
associated radar.
AN/MPS-11.
Pulse Repetition Rate: 180 to 420 pps
(adjusted to conform with pm of
Related Equipments:
Radar Identification Set
AN/GPX-18 may be used with Radar Set AN/FPS-8
and AN/MPS-11.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
Code Coordinator KY-54/GPX
1
8-5/8
6-5/8
23
39
Recognition Set AN/UPX-6
1
Switch Box SA-239/GPX
5
Antenna Group OA-405/FPS-8
1
REFERENCE DATA AND LITERATURE
TECHNICAL ORDERS:
31P4-2GPX-101
31P4-2GPX-174
31P4-2GPX-1
31P4-2GPX-104
31P4-2GPX-184
31P4-2GPX-14
31P4-2GPX-134
31P4-2GPX-194
31P4-2GPX-24
31P4-2GPX-164
31P4-2GPX-506
AN/GPX-18: 2
Previous Page
