Volume 1
MIL-HDBK-162A
Section 1
15 December 1965
ITEM NAME: RADAR SET
TYPE: AN/FPS-6
information.
Receiver Band Width: 1 mc
RELATION TO SIMILAR EQUIPMENT
Frequency (if.): 30 mc
AN/FPS-6 is similar to and one way interchangeable
Type of Presentation: Two 12-1/2 in. RHI scopes
with Radar Sets AN/FPS-6A and 6B.
Radar Set
Indicator Ranges:
AN/FPS-6A differs in that Indicator Group OA-929/FPS-
Azimuth: 0 to 110 mi; 90 to 200 mi;
6A is used in place of Radar Set Group OA-270/FPS-6
50-mi sector scan that can be started at any
which provides increased height findings, accuracy and
range between 0 and 150 mi
reliability. Radar Set AN/FPS-6B differs also in that
Height: minus 5000 to plus 60,000 ft, minus 5000 to
Indicator Group OA-929/FPS-6A is used along with
plus 20,000 ft, 15,000 to 35,000 ft and 35,000 to
improved components and a variable nod feature which
60,000 ft
incorporated into the antenna. AN/MPS-14 is the mobile
Range Marks: 10-mi intervals, accentuated at 50-mi
version of AN/FPS-6.
intervals
Height Marks: 20,000, 40,000 and 60,000 ft
TECHNICAL DESCRIPTION
Elevation Angle Marks: 5-deg intervals
Frequency: 2700 to 2900 mc
from O to 30 deg
Power Output: 5 megw, peak
Power Requirements: 120/208v, 60 cps,
Power Source (rf): Type QK-338 magnetron
3-ph, 4-wire, 50 kva
(fixed, tunable)
Pulse Width: 2 to 3 usec
INSTALLATION CONSIDERATIONS
Pulse Repetition Rate: 300 to 400 pps
Siting: Tower AB-258/FPS-6 (temperate) requires a
Range: 200 naut mi
level area of 30 feet in diameter. Tower AB-
Vertical Coverage: minus 5000 to plus
259/FPS--6 (arctic) requires a level area of 70 feet
60,000 ft; minus 2 to plus 32 deg
in diameter.
angular
Horizontal Coverage: 360 deg
Mounting: Antenna Group is installed in either
Antenna Speed of Rotation: In a 180-deg
Temperate Tower AB-258/FPS-6 or Arctic Tower
pointscan, the avg slewing rate is
AB-259/FPS-6. Indicator Group is installed in the
7-1/2 rpm
operations building which contains the associated
Antenna Vertical Scanning Rate: 20 or 30
search radar.
cpm
Interference Considerations: Absolute minimum of
Range Resolution: 3/8 mi or 0.5 pct
100 feet distance must be maintained between the
Azimuth Resolution: 3.2 deg
AN/FPS-6 and associated radar or other high
Elevation Resolution: 0.90 deg
power radiating equipment.
Range Accuracy: plus or minus 1 pct
Azimuth Accuracy: 0.5 deg
Related Equipments: Radar Set AN/FPS-6 can be
Elevation Accuracy: 1000 ft
used with AN/FPS-3, 3A, AN/FPS- 20, 20A,
Horizontal Beam Width: 3.2 deg
AN/FST-2
Vertical Beam Width: 0.85 deg
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
Motor-Generator PU-293 or
1
18
16
44-5/8
293A/U
Antenna Equipment
1
Antenna Control C-1050/FPS-6
4
18
7-1/2
13
50
Antenna Control C-1048/FPS-6
1
7
6
9-1/2
25
Radar Set Group OA-320/FPS-6
1
48
24
42
1200
Heat Exchanger HD-188/FPS-6
1
21-3/8
34-1/4
30-1/2
300
Terminal Box J-470/FPS-6
1
7-1/4
22-1/2
57
130
(crated)
(crated)
AN/FPS-6: 2
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