Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
SC-5
Battleships - 12 mi
FUNCTIONAL DESCRIPTION
Cruisers - 12 mi
Submarines - 3 mi
The SC-5 is a medium-range search radar used for
Range Resolution: 500 yd
early warning against aircraft. It employs a master PPI
Bearing Resolution: 10 deg
which will feed as many as 16 radar repeaters. Provision
Range Accuracy: 100 yd
is made for use of Mark III IFF equipment. The SC-5 is
Bearing Accuracy: 3 deg
installed on destroyers and larger vessels.
Range, Min: 1, 200 yd
RELATION TO SIMILAR EQUIPMENT
Type of Presentation:
Range - 5-in. A-scope; 20-, 80-, and 400-mi
The SC-5 is similar to Radar Equipments SC, SC-1,
ranges
SC-2, SC-3, and SC-4, except that the SC-5 has a new
Bearing - True and relative
antenna drive motor, a selenium rectifier in the control
PPI-12-in. master PPI with 20-, 80-, and
unit, and different transmitter mounting dimensions.
200-mi ranges
Antenna Type: Dipole array
Antenna Impedance: 52 ohms
TECHNICAL DESCRIPTION
Reflector: Rectangular mattress
Horizontal Beam Width: 17 deg at half-power
Frequency: Transmitter, 195 to 255 mc;
points
receiver, 175 to 225 mc
Vertical Beam Width: 60 deg at half-power points
Peak Power Output: 200 kw
Polarization: Horizontal
Pulse Repetition Rate: 60 pps
Pulse Width: 5 sec
Antenna Gain: 13.5 db
IF. Frequency: 15 mc
INSTALLATION CONSIDERATIONS
IF. Bandwidth: 5 mc
Receiver Sensitivity: 1 v
Siting:
Maximum Overall Gain: 160 db
Mounting: Radar units should not be mounted on
Operating Voltages and Power Requirements:
outboard bulkheads. Inboard bulkhead mount-
460v, 60 cps, 1-ph, 3.5 kw; can be converted
ing is permitted if bulkheads are braced to
for 230 vac operation with supplied kit.
prevent vibration from gunfire.
Maximum Reliable Range:
Cabling Requirements: Cables must have enough
Bombers - 90 mi at 30, 000 ft
slack to allow units to slide in and out of case
Fighters - 40 mi at 10, 000 ft
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Transmitter NT-52ADG
1
64-11/16
20-1/4
22-7/8
334
Receiver-Indicator NT-46ADG-1
1
22-9/16
21-27/32
21-7/8
253
including: Receiver NT-46ACQ-2
Control Unit NT-23AFN
1
22-9/16
13-3/8
21-9/16
125
Plan Position Indicator NT-55AFZ
1
43
37-1/16
42-13/16
800
Antenna Assembly NT-66AJE or
1
180
43-1/2
91-1/16
590
NT-66AJF
Transformer NT-30AAK
1
20-1/4
7-21/32
8-7/16
135
REFERENCE DATA AND LITERATURE
Technical Manual:
NAVSHIPS 900, 867
SC-5: 2
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