Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
ITEM NAME: RADAR SET
TYPE: AN/SPS-35, AN/SPS-35A
not less than 6 from mechanical horizon.
RELATION TO SIMILAR EQUIPMENT
Rotation: 20 rpm (avg).
The AN/SPS-35A is a modified AN/SPS-35 with an
Radar Resolution
additional PPI (remote) and minor changes. AN/SPS-35 and
Azimuth: 2.5
AN/SPS-35A are similar to, but not mechanically
Range: 50 yds
interchangeable with AN/SPN-21 and AN/SPS-36.
The
Local Oscillator: 2K25 or QK391 klystron
antenna and indicator units also have some component part
Power Requirements
differences. AN/SPS-35, -35A are modified military versions
Standby: 207w
of the Raytheon Pathfinder, Raytheon Model 1500.
Radiate: 565w at 5.41 amp
Voltage Requirements:
TECHNICAL DESCRIPTION
24v dc (when used with Motor Generator
PU-420/U
Frequency: 9335 to 9405 mc
11Sv dc (when used with Motor Generator
Type of Frequency Control: Amplitude
PU-421/U)
Modulated magnetron oscillator.
115v ac, 60 cycles, 1-ph
Peak Power Output: 7 kw
Pulse Length: 0.2 usec
INSTALLATION CONSIDERATIONS
Pulse Repetition Frequency
1500 pps for 1, 2, 4, 8, and 16 mi ranges
Mounting: Receiver-Transmitter is in a weatherproof
750 pps for 32 mi range
mounting in the antenna housing. The Indicator
Type of Receiver: Superheterodyne
is drip-proof but must be sheltered from the
IF. Frequency: 45 mc
weather.
Control-Indicator is designed for
IF. Bandwidth: 10 mc
3position mounting.
Antenna is sideclamp
Antenna: Truncated paraboloidal reflector
instead of usual base or pedestal bolt mounting.
Horizontal Beam Width: 3
Vertical Beam Width: 15 with 3 db point
PRINCIPAL COMPONENTS AND PHYSICAL DATA
SHIPPING DATA
COMPONENT
BOXES
OVERALL DIMENSIONS
UNIT WT.
(NR)
(Inches)
(Pounds)
Antenna Receiver-Transmitter
1
32 x 50 x 56
274
AS-923/SPS-35
Control Indicator C-2335/SPS-35
1
28 x 33 x 44
294
Cathode Ray Tube10WP7
1
17 x 19 x 29
54
IKEE
1
18 x 18 x 29
45
Equipment Maintenance Parts
1
14 x 21 x 26
62
Equipment Maintenance Parts
1
14 x 21 x 24
54
Equipment Maintenance Parts
1
14 x 21 x 24
61
Equipment Maintenance Parts
1
19 x 21 x 33
51
Compensator, Power Factor CN-469/U
*Motor-Generator PU-420/U
**Motor-Generator PU-421/U
ANSPS-35: 2
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