Volume 1
MIL-HDBK-162A
Section 1
15 December 1965
ITEM NAME: CLOSE SUPPORT CONTROL SET
TYPE: AN/MSQ-1A
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assignments to evaluate the bombing capabilities of
Radar Height Above Sea Level: 15,000 ft
SAC combat crews.
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Aircraft Ground Speed: 15,000 ft max
RELATION TO SIMILAR EQUIPMENT
X and Y Target from Radar Coordinates:
Differences between AN/MSQ-1 and AN/MSQ1A:
352,000 yd max
AN/ISQ-1 has 4-mc bandwidth, requires power source of
Target from Aircraft Distance: 352,000
120v ac, 50 kw, and is used with AN/MPS-9 and
yd max
AN/GSC-1; AN/MSQ-1A has 3-mc bandwidth, requires
Windspeed in Flight Simulator: 300 knots
power source of 208v ac, 12 kw, and is used with AN/
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MPS-19 and AN/MRC-45. The AN/MSQ-1A is an air
Rate of Change of Aircraft Course on
transportable version of Close Support Control Set
Flight Simulator: about 12 deg per sec
AN/MSQ-1.
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Plotting Surface Dimensions: 34.7 by
TECHNICAL DESCRIPTION
34.7 in.
Frequency: S-Band, 2700 to 2900 mc
Fixed Map Scales (1000 yd-per-yd): 20,
Peak Power Output: 500 kw
50, 100, 250, 500, 1000
Average Power Output:
Expanded Scales (yd-per-in.): 400, 800,
Radar - 164w
1600, 3200
Triple Pulse - 492w
Power Requirements: 12 kw, 115v, 60
Pulse Repetition Frequency:
cycle, 3-ph power
Radar - 300 to 2000 pps
Beacon - 410 pps
INSTALLATION CONSIDERATIONS
Pulse Width Signal: 0.8 usec
Siting: Trailer containing equipment and components
Pulse Width, Coded Pulses: 0.8 usec ea
must be on the highest accessible vantage point.
Local Oscillator Frequency Range:
Equipment must be level and have an unobstructed
Radar - from 2670 to 2930 mc
radar sighting range.
Beacon - from 2670 to 2930 mc
Intermediate Frequency: 30 mc
Mounting: Radar Set AN/MPS-19 (Radar Van), Radio
Bandwidth: 3 mc
Set AN/MRC-45 (Communications Van) Computing
Aircraft Slant Range (Accepted by Computer):
Tracking Group, Radar OA-626/ MSQ-1A (Control
352,000 yd max
Van). Each of the major components is mounted in
R-F Beam Width: 3 deg (at half-power
a separate shelter or "pod".
Each shelter is
point with 8 ft reflector)
mounted
on a M-45 2-1/2 ton, 6 by 6 cargo
Indicator Ranges: 50,000, 100,000,
vehicle, which provides ground transportation and also
200,000, and 360,000 yd
serves as a
base support for the equipment during
Aircraft Horizontal Range: 352,000 yd max
operation.
Aircraft Height Above Burst: 250,000 ft
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Radar Set AN/MPS-19
1 ea
Radio Set AN/MRC-45
1 ea
Computing Tracking Group,
1 ea
Radar OA-626/MSQ-1A
Cargo Vehicle M-45
3 ea
REFERENCE DATA AND LITERATURE
Technical Orders:
31P2-2MSQ1-51
31P2-2MSQ1-52
AN/MSQ-1A: 2
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