Volume 1
MIL-HDBK-162A
Section 2
15 December 1965
ITEM NAME: TRANSPONDER SET
TYPE: AN/APX-25
RELATION TO SIMILAR EQUIPMENT
Operating Voltages and Power Requirements:
ac: 105 to 124v, 320 to 1760 cps, 220w
Similar to AN/APX-6 and replaced by
dc: 24 to 29v, 30w at 27.5v
AN/APX-25A.
Duty Cycle: 0.0025
Environmental Limitations: Antenna cable
should not be longer than 20 ft
TECHNICAL DESCRIPTION
INSTALLATION CONSIDERATIONS
Range, Max: 150 naut mi
Peak Power Output: 1 kw
Not available.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
1
10.5
13.19
12.52
38
RT-279/APX-25
Transponder Set Control
1
3.0
5.75
4.52
1.25
C-1158/APX-25
1
9.4
3.17
7.19
1
AT-234/A PX-25
Coder-Decoder KY-95/APX-25
1
10.52
5.19
7.75
13.5
or KY-95A/APX-25
10.7
5.12
7.52
9.5
Coder Group Control 1
2.25
5.75
5
1.5
C-1 12B/A PX-25
Mounting MT-362A/A
1
12.25
9.75
2.31
3.5
NOTE: *Type used dependent upon aircraft installation.
REFERENCE DATA AND LITERATURE
Technical Orders:
12P4-2APX25-2
12P4-2APX25-4C
12P4-2APX25-2C
12P4-2APX25-501
12P4-2APX25-2E
12P4-2APX25-501B
12P4-2APX25-2F
12P4-2APX25-3
Specifications:
12P4-2APX25-3C
MIL-I-2534B
AN/APX-25: 2