Volume 1
MIL-HDBK-162A
Section 1
15 December 1965
ITEM NAME: RADAR SET
TYPE: AN/FPN-1A
Pulse Repetition Frequency: 2000 pps
RELATION TO SIMILAR EQUIPMENT
Pulse Duration: 0.5 usec
Duty Cycle: 0.001
The AN/FPN-1A is similar to the AN/FPN-1 except
Range Limits
for component parts.
Search System: 30, 20, 10 and 6 naut mi
Height Finder System: 20 naut mi slant
TECHNICAL DESCRIPTION
range, 12, 000 ft altitude
Precision Azimuth and Elevation: 6 naut
Operating Frequencies Radar
mi
Search System: 2880 mc
Radar Bandwidths (All Systems)
Height Finder System: 9150 mc
Intermediate Frequency: 4.0 mc
Precision Azimuth System: 9040 mc
Video Frequency: 1.75 mc
Precision Elevation System: 9010 mc
Operating Power Requirements: 115v ac,
Operating Frequencies Communications
60 cps, single ph, 40 kw
Transmitting (hf): 2 to 18 mc
Receiving (hf): 1.5 to 9 mc
INSTALLATION CONSIDERATIONS
Transmitting (vhf): 100 to 156 mc
Receiving (vhf): 100 to 156 mc
Siting: Fixed station.
Pulse Data
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
Antenna Mount AB-104/GPN-2
1
32 x 46-1/2 x 54
375
Antenna Mount AB-136/FPN-1A
1
18 x 28 x 50
548
Antenna Tower AB-138, /FPN-1A
1
330 x 330 x 804
25000
Antenna Tower AB-139/FPN-1A
1
330 x 330 x 804
25000
Preamplifier AM-29/MPN-1A
6
3 x 4 x 7-3/4
3
Servo Amplifier AM-138/GPN-2
2
10-5/8 x 14-1/2 x 19
35-1/2
Electronic Control Amplifier
1
10-1/2 x 19 x 20-1/2
40
AM-206/FPN-1A
A.F. Amplifier AM-207/FPN-1A
1
5-1/8 x 14-1/4 x 19
8
Video Amplifier AM-20B/FPN-1A
2
B-3/4 x 16 x 19
28
Antenna Assy AS-76/MPN-1A
2
20
Antenna Assy AS-317/GPN-2
1
5-1/2 x 12 x 55
32
Antenna Assy AS-338/GPN-2
2
4 dia x 16
4
Antenna Assy AS-379/FPN-1A
1
8-1/4 x 11 x 173
100
Antenna Assy AS-380/FPN-1A
1
6-1/2 x 8-1/2 x 100
65
Antenna Assy AS-3b1/FPN-1A
1
8-1/4 x 11 x 173
100
Azimuth Reflector AT-44/MPN-1A
1
28 x 49 x 102
150
Elevation Reflector
2
150
AT-45/MPN-1A
Antenna Reflector AT-109/U
1
26-1/4 x 62-1/2 x 101
198
Power Control C-444(XN-1)/U
4
10 x 11 x 16
Power Control C-145/FPN-1A
1
10-5/8 x 17 x 19
16
AN/FPN-1A: 2
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