Volume 1
MIL-HDBK- 162A
Section 1
15 December 1965
ITEM NAME: RADAR SET
TYPE: AN/FPS-90, AN/FPS-507
Elevation Resolution: 0.90 deg
RELATION TO SIMILAR EQUIPMENT
Range Accuracy: plus or minus 1 pct
Radar Set AN/FPS-90 has been assigned to Radar
Elevation Accuracy: 1000 ft
Sets AN/FPS-6( ) which have had the mechanical
Vertical Beamwidth: O.85 deg
variable-nod mechanism removed from the antenna.
IF. Frequency: 30 mc
The variable-nod controls remain in place, but are not
Type of Presentation: RHI scopes
used. Radar Set AN/FPS-507 performs the same
Indicator Ranges:
functions as Radar Set AN/FPS-6B but performs them
Azimuth - 0 to 100 mi, O to 200 mi
with greater reliability due to the substitution of Radar
Height - 5000 to 75,000 ft, S000 to
Transmitter T-5030/FPS-507. The reliability of the
25,000 ft, 20,000 to 50,000 ft,
transmitter is due essential to the employment of
45,000 to 75,000 ft
Canadian Marconi type 7182 magnetron. Also, units of
Range Marks - 10, 20, 50 mi
Radar Set AN'FPS-6B are modified to produce Radar
Height Marks - 10,000 ft intervals
Set AN/FPS-507.
Elevation Angle Marks - 5 deg intervals
Power Requirements: 120/20o3, 3 ph, 60
TECHNICAL DESCRIPTION
cycle, 4-wire, 50 kva
Frequency: fixed frequency within the
2700 to 2900 mc band
INSTALLATION CONSIDERATIONS
Power Output: 5 megw
Sitting: Tower AB-25l3/FPS-6 (temperate) requires a
RF Power Source:
level area of 30 feet in diameter, while Tower AB-
Type QK-33cA magnetron on the AN/FPS-90
259/FPS-6 (arctic) requires a level area of 70 feet in
Type 7182 magnetron on the AN/FPS-507
diameter.
Pulse Width:
Mounting:
Antenna Group is installed in either
2 to 3 usec on the AN/FPS-90O
temperate Tower AB-25B/FPS-6 or Arctic Tower
3.8 plus or minus 0.3 usec on the
AB-259/FPS-6. Indicator Group is installed in the
AN/FPS-507
operations building which contains the associated
Pulse Rep1etition Rate: 300 to .100 pps
search radar.
Range: 100 naut mi
Related Equipment:
Radar Sets AN/FPS-90 and
Vertical Coverage: -2 to plus 32 deg
AN/FPS-507 can be used with Radar Sets AN/FPS-
angular
3, AN/FPS-3A, AN/FPS-20, and AN/FPS-20A. Also
Horizontal Coverage: 360 deg
Coordinate Data Transmitting Set AN'FST-2 is used
Antenna Vertical Scanning Rate: 20 or
with the AN/FPS-90O and AN/FPS-507.
Range Resolution: plus or minus 1/2 pct Azimuth
Resolution: 3.2 deg
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
Motor Generator PU-293/G or
1
18
16
44-5/8
PU-293A /G
*Antenna Group OA-15-10/FPS-90
1
**Antenna Group OA-2010/FPS-6B
1
*Support, Antenna Reflector
1
AB-776/FPS -90
**Support, Antenna Reflector
1
AB-580/FPS-6B
Reflector, Antenna AT-873/FPS-6B
1
Horn, Antenna AT-137/FPS-6
Support, Antenna AB-284/FPS-6
1
Coupler, Rotary Transmission
1
Line UG-950/FPS -6
Adapter, Base MX-1547/GP
1
Coupler, Rotary Transmission
1
Line UG-960/FPS-6
Waveguide
Base, Antenna AB-285/FPS-6
1
Control, Antenna C-1055 FPS-6
1
Blanker, Interference
1
11
15
12
49
MX-1739A/FPS-6
AN/FPS-90: 2
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