Volume 1
MIL-HDBK-162A
Section 2
15 December 1965
ITEM NAME: RADAR SET
TYPE: AN/APQ-20
least 50 mi when equipment is opera-
RELATION TO SIMILAR EQUIPMENT
ted at 5000 ft
None.
Transmitter Effective Transmissions
TECHNICAL DESCRIPTION
Range: 10 to 15 mi at altitudes in
Receiver Frequency Range: 2300 to 3750
excess of 5000 ft
mc
Operating Power Requirements: 85/115v
Modulator Noise Signal Frequency: 750,000
ac, 400 to 2600 cps; 28v dc
cycles to 5 mc
INSTALLATION CONSIDERATIONS
Performance Limiting Factors
Related Equipment: (Required but not Supplied) (1)
Altitude: Up to 40,000 it
Headset HS-33 (600 ohms impedance); (1) Test
Temperature Ranges: -55 dog C (-67
Oscillator TS-252/AP; (1) Power Meter TS-
deg F) to plus 64 dog C (plus 147
125/AP; a set of Cabling (Length as required).
deg F)
Effective Receiving Signal Radius: At
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
Radar Receiver R-158/APR-10
1
7-7/8 x 10-1/2 x 21-1/4
46
Mounting Base MTl-171/I
1
10-5/16 x 19-7/16
1.5
Filter F-38/APR-10
1
1 x 2-1/8 x 5-3/16
1.0
Filter F-31/APR-10
1
1-5/16 x 2-7/8 x 11-5/16
2.2
Antenna Assy AS-125/APR
3
5-3/4 dia x 7-5/16
1.5
Blister CWl-92/AP
3
Switching Assy SA-69/APR-10
1
3-3/16 dia x 3-11/16
1.56
Plug UG-21/U
10
.3
Adapter UG-27/U
1
.2
Plug PL-259-A
1
.05
Adapter M-359
1
.06
Plug AN-3106-22-4S
1
.22
Clamp AN-3057-12
1
.06
Adapter UG-265/U
1
Cable
1
2760 lg
Radar Transmitter T-141/APT-10
1
7-1/ x 10-1/8 x 22
36
Tuning Unit TN-104/APT-10
1
5-1/ x 7-1/2 x 21
10
Tuning Unit TN-105/APT-10
1
5-1/8 x 7-1/2 x 21
10
Tuning Unit TN-106/APT-10
1
5-1/8 x 7-1/2 x 21
10
Tuning Unit TN-107/APT-1
0
1 5-1/8 x 7-1/2 x 21
10
Modulator MD-59/APT-10
1
7-1/2 x 10-1/8 x 22
35
Output Indicator ID-155/APT-10
1
3-5/8 x 5 x 5-1/4
1.5
Case CY-418/APT-10
3
5-1/8 x 7-1/2 x 21
1
Mounting Base MT-167/U
3
5-3/ x 23-1/8
1
Mounting Base MT-171/U
2
10-5/16 x 23-1/8
1
Mounting Base MTbL-114/APT-1
1
7/8 x 5 x 5-5/8
.5
Antenna Assy AS-259/APT-10
1
Cord CG-347/APT-10
1
36 lg
Plug AN-3106-22-4S
1
.22
Plug AN-3106-22-28P
1
.22
Plug AN-3106-22-289
1
.06
Clamp AN-3057-12
3
Plug AN-3106-10S-8S
1
Plug AN-3106-16S-SP
1
Clamp AN-3057-8
2
Plug PL-259A
2
.05
Adapter M-359
2
.06
REFERENCE DATA AND LITERATURE
Technical Manuals:
CO-AN16-30APQ20-2-M
AN/APQ-20: 2
Previous Page
