Volume 1
MIL-HDBK-162A
Section 1
15 December 1965
ITEM NAME: RADAR SET
TYPE: AN/FPS-8
Vertical - 9 deg
identification
equipment;
power
for
telephone
Receiver Bandwidth: 0.6 mc
communications equipment; and power and trigger for a
IF. Frequency: 30 mc
height finding radar set when the set is used in a ground
Indicator Type and Quantity: Two to six
controlled intercept system.
12-in. PPI scopes, one 5-in. "A" scope
Indicator Ranges: O to 50, 0 to 100,
RELATION TO SIMILAR EQUIPMENT
and O to 160 mi
Range Marks: 10-mi intervals, accentu-
Radar Set AN/MPS-11 is essentially a mobile
ated at 50-mi intervals
version of Radar Set AN/FPS-8 with identical purpose,
Angle Marks: 10-deg intervals, every
capabilities, and limitations. Differs only in mounting
third mark accentuated
facilities.
Power Requirements: 120/208v ac, 60 cps,
3-ph, 4-wire, 20 kw
TECHNICAL DESCRIPTION
Frequency: 1280 to 1350 mc
INSTALLATION CONSIDERATIONS
Wave Length in Free Space: 22.2 to 23.4
Siting:
It is normally desirable to site tower AB-
cm
937/FPS-8 on the highest available location due to
Power Output: 1 megw, peak
the relative importance of extending low angle
RF Power Source: Type JAN-QK-358 tunable
coverage for optimum early warning performance.
magnetron
Pulse Width: 3 usec
When AN/FPS-8 is to be located in close proximity to
Pulse Repetition Rate: 360 pps
other radar sets, a minimum of 100 feet distance
Duty Cycle: 0.00108
must be maintained between antennas to prevent
Range: 160 naut mi without delay,
crystal burnout.
220 naut mi with delay
Horizontal Coverage: 360 deg continuous,
Mounting: Antenna Group is installed in Arctic Tower
either direction
AB-313/FPS-8 or Temperate Tower AB-397/FPS-8.
Antenna Speed of Rotation: O to 10 rpm
Indicator and control group is installed in operations
Resolution: plus or minus 1/2 deg
building. Power group is installed in power building.
in azimuth
System Accuracy:
Related Equipment:
Interrogator Set AN/GPX-18,
Range - 0.5 mi
Video Mapping Equipment.
Azimuth - 0.5 deg
Beam Width:
Horizontal - 2.5 deg
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
Antenna Group OA-405/FPS-8
1
200
300
72
2429
(length)
Receiver Group OA-417/FPS-8
1
50-1/2
33-1/8
27
540
Transmitter Group OA-413/FPS-8
1
57-9/16
32
24
578
Modulator Group OA-414/FPS-8
1
55-1/3
24
24-1/4
578
Power Supply Group OA-412/FPS-8
1
54
30
28
1160
Switching Group Electrical
1
61-1/2
25
32
760
Power OA-415/FPS-8
Radar Set Group OA-381/FPS-8'
1
40-3/4
33-3/8
26-5/8
150
Radar Set Group OA-416/FPS-8
1
63-9/16
24
29
570
Control, Antenna C-1133/FPS-8
1
30
15
15
Indicator, Range IP-209/FPS-8
1
21
28-11/16
15
150
Indicator Group OA-99A/CPS
2 to 6
419
AN/FPS-8: 2
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