Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
SS, SS-a, SS-1, SS-2
sector
FUNCTIONAL DESCRIPTION
PPI - 5-in. scope with provision for four PPI
repeaters at ranges of 4, 10, 20, and 80 mi
Radar Equipments SS, SS-a, SS-1, and SS-2 are
Other - IFF may be displayed on A-scope
installed in submarines to search for, and obtain torpedo
RF Power Source: Type 2J50 magnetron
launching information about, surface ships.
These
Pulse Repetition Rate: 600 cps 10i
equipments also provide warning information on low-
Pulse Width: 0.5 sec
flying aircraft. Provision is made for IFF operation.
Horizontal Coverage: 360 deg
Antenna Rotation Speed: 0 to 8 rpm (motor or
manual)
RELATION TO SIMILAR EQUIPMENT
Reflector Type: Solid, truncated parabola
Antenna Feed: Waveguide
The SS and SS-a are similar to Radar Equipment SS-
Horizontal Beam Width: 2.6 deg
1 and SS-2 except that the latter have interconnections
Vertical Beam Width: 16 deg
for a target designation computer. Radar Equipment SS,
Antenna Gain: 26 db
SS-a, SS-1, and SS-2 may be used to replace the SJ,
Range Resolution: 85 yd
SJ-a, SJ-1, and ST radars and may be used with an ST
Bearing Resolution: 3 deg
Range Accuracy: 25 yd plus 1% of range on 0-
to 20-mi scale; 200 yd plus 2% of range on
0- to 80-mi scale
TECHNICAL DESCRIPTION
Receiver Bandwidth: 5 mc
IF. Frequency: 60 mc
Frequency: 8740 to 8890 mc
Maximum Reliable Range:
Bombers - 7.5 mi at 500 ft
INSTALLATION CONSIDERATIONS
Battleships - 15 mi
Cruisers - 15 mi
Siting: Control units, transmitter-receiver, and
Destroyers - 12.5 mi
units included in the waveguide line should be
Submarines - 10 mi (when surfaced)
installed in the conning tower; power supply
Range, Min: 300 yd
rectifiers and junction box should be installed
Power Output: 75 to 110 kw (peak);
in control room.
0.045 kw (avg)
Mounting:
Operating Voltages and Power Requirements:
Cabling Requirements: Only high voltage cable
115 vac, 60 cps, 1-ph, 3.8 kva
is supplied.
Type of Presentation:
Range - 3-in. A- or B-scope at ranges of 4,
Compass Mk7 Mod 4; Torpedo Data Computer
10, 20, and 80 mi
Mk 4 Mods 1 thru 12; SV Radar Equipment.
Bearing - B-scope at 4, 000 yd and 30 deg
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Junction Box 62217
1
4-17/32
18-1/4
18-5/8
50
Antenna Drive Motor 211388
1
8-3/4
8-27/32
17-3/16
120
Waveguide Switching Unit 24AAN
1
5-1/32
12-5/16
12-5/8
23
Directional Coupler 14ABL
1
2-7/16
3-5/8
8-1/32
5
Waveguide Stop 23AGO
1
4-5/16
6-1/2
6-1/2
15
High Voltage Rectifier 20ADW*
or 20ADW-1**
1
17-3/8
19-3/8
26-3/4
325
Auxiliary Rectifier 20ADO*
or 20ADO-1**
1
17-3/8
19-3/8
26-7/8
250
SS: 2
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