Volume 1
MIL-HDBK-162A
Section 2
15 December 1965
ITEM NAME: RECEIVING EQUIPMENT
TYPE: AN/APR-4
-67 deg to 162 deg F
RELATION TO SIMILAR EQUIPMENT
Altitude Data: 40,000 ft
None.
Humidity Range: 0 to 95%
Power Requirements: 125w at 80/115v,
TECHNICAL DESCRIPTION
60 to 2600 cps, single ph; 25w at 28v
Frequency Range: 39 to 4000 mc using four plug in
dc
tuning units.
Audio Power Output: 100 to 200 mw
INSTALLATION CONSIDERATIONS
Audio Output Impedance: 8000 to 600 ohms
Related Equipment: (Required but not Supplied) (1)
Video Output: 1.5v
Headset HS-23, HS-33 or HS-38; (1) Plug LP-55; (1)
Video Output Impedance: 70 ohms
Panoramic Adapter with cable and Power Supply
Broad Band Sensitivity: 35 uv input to give an increase
AN/APA-10; (1) Radar Indicator Assembly AN/APA-
of 100 uamp on the diode meter.
6 or AN/APA-11 (1) Antenna AT-190B/AP; (1)
Narrow Band Sensitivity: 20 uv to give an increase of
Antenna AT-191B/AP.
100 uamp on the diode meter.
Temperature Range: -55 deg to 72 deg C;
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
Radar Receiver R-54-APR-4
1 8 x 10-1/2 x 21-1/2
29
including:
Amplifier AM-27/APR-4
8 x 6-1/2 x 14-1/16
Tuning Unit TN-16
1
6-1/2 x 8 x 14-1/16
12.75
Tuning Unit TN-17
1
6-1/2 x 8 x 14-1/16
13.75
Tuning Unit TN-18
1
6-1/2 x 8 x 14-1/16
14.25
Tuning Unit TN-19
1
6-1/2 x 8 x 14-1/16
16
Tuning Unit TN-54
1
6-1/2 x 8 x 14-1/16
15.50
Case CY-31/APR-4
4
6-1/2 x 7-3/4 x 9
7
Mounting Base MT-171/U
1
2.8
Switchning Assembly
1
3.4
SA-23/APR-4
*Antenna Assembly AS-23/APR-4
1
*Antenna Stub AT-38/APT or
1
29
10
AT-38A/APT
*Fan Antenna consisting of:
Antenna Support AB-27/A
1
3 x 3-3/8
.62
Insulator IN-88
2
Tension Unit
1
Wire W-106A
20 ft
Thimble AN-100-3
2
*Radio Frequency Cable
As
RG-8/U
Req'd
Wire AN-20
As
Req'd
*Radio Frequency Plug
3
5/8 x 1-1/2
.3
UG-21/U
*Radio Frequency Adapter
3
.68 x 1.25 x 1.37
.2
UG-27/U
Plug PL-259
3
3/9 x 1-1/2
.5
Adapter M-359
3 3/4 x 1-1/4 x 1-1/4
.08
Adapter AN3057-12
1
1-3/16 x 1-9/16
.06
Plug AN3108-22-4S
11-19/32 x 2.17 x 3-1/32
.22
NOTE: *Issued in twice above quantity for installations requiring a complete antenna pattern.
REFERENCE DATA AND LITERATURE
Technical Manuals: AN 08-30APR4-3 for Receiving Equipment AN/APR-4.
AN/APR-4: 2
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