MIL-HDBK-162A
Volume 1
15 December 1965
Section 2
ITEM NAME: RADAR SET
TYPE: AN/APS-20E
INSTALLATION CONSIDERATIONS
300 pps: 200 mi
900 pps: 50 mi
Related Equipment
Receiver Bandwidth
Required but not Supplied: (1) Indi-
Radar: 1.2 mc plus or minus 0.2 mc
cator Assy Type AN/APS-56, (1) Grou-
Beacon: 6 to 8 mc
nd Position Indicator AN/APA-57B
Receiver Intermediate Frequency
(1) Radar Compensating Assy AN/APA-
Radar: 30 mc
16, (1) Indicator Equipment AN/APA-
Beacon: 40 mc
5A, (1) Radio Transmitting Set AN/
Input Voltages to Radar: 28v dc, 115v,
ART-28, (1) Radar Set AN/APX-7, (1)
380/420 cycle exact, 115v, 380/1000
Antenna Group 0A-492/APS-20B, (1)
cyc, 3-ph
Set of Cables, Connectors, Cable
Total Power Required by Radar
Clamps & Electrical Wire as Re-
Standby: 3460w
quired.
Operate: 8574w
Power Required by Supplies
Operate: 115v, 380 to 1000 cyc, 3-ph,
7360w, 115v, 380 to 420 cyc, 1-ph,
316w, 28v de, 868w
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
Electrical Synchronizer
1
12-5/16 x 15-3/8 x 22
40
SN-55/APS-20B
Mounting MT-1168/APS-20B
1
Radar Transmitter T-467/APS-20B
1
20-5/16 x 23-5/8 x 37
Duplexer CU-165/APS-20B
1
6-1/16 x 16-1/4 x 29-1/2
Mounting MT-802/APS-20B
4
Antenna AS-407/APS-20B
1
Radar Receiver R-251/APS-20B
1
12 x 12 x 18
Azimuth & Range Indicators
2
12-1/2 x 19-1/2 x 19-1/2
IP-203A/APS-20B
Mounting MT-1135/APS-20B
2
Azimuth & Range Indicator
1
5-1/2 x 6-1/4 x 13
15
IP-23/APS-20B
Power Supply PP-704/APS-20B
1
7-1/4 x 10 x 14-7/16
approx
10
Mounting MT-954/APS-20B
1
1-7/8 x 10-1/4 x 13-3/8
2
Power Supply PP-829/APS-20B
1
19-5/8 x 20 x 23-1/4
261
Power Supply PP-347/APS-20B
1
15-7/16 x 15-7/8 x 23-1/2
75
Mounting MT-1134/APS-20B
1
approx
40
Radar Set Control C-1449/APS-20E
1
11-1/8 x 11-1/4 x 12
Mounting MT-1136/APS-20B
1
1-3/4 x 8-1/4 x 10-11/16
3
Transformer Assy TF-158/APS-20B
1
AN/APS-20E: 3
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