Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
SR-6
Azimuth Accuracy: 1 deg
FUNCTIONAL DESCRIPTION
Range, Min: 800 yd
Radar Equipment SR-6 is a medium range search
Type of Presentation:
equipment for shipboard installation. The SR-6 is used
Range- 5-in. A-scope (not supplied) 4, 20,
to detect surface vessels and aircraft and to supply
80, and 200 mi
range and bearing data. No PPI or A-scopes are
Bearing- Relative and true shown on dial;
supplied with the SR-6, but provision is made for use of
provision is made for radar repeaters
all types of standard repeaters. IFF equipments for the
Reflector: V-shaped, 112-3/16 in. long
SR-6 are Radar Equipments Mark 3 and Mark 5.
Antenna Feed: Waveguide and dipole
Antenna Turning Radius: 5 ft
Horizontal Beam Width: 8 deg
Vertical Beam Width: 30 deg
RELATION TO SIMILAR EQUIPMENT
Antenna Polarization: Horizontal
Antenna Gain: 21 db
Radar Equipment SR-6 is a lightweight version of the
Antenna Rotation: 360 deg; 5 to 15 rpm, auto-
SR-3 and is similar to Radar Equipments AN/SPS-6( )
matic or manual
and SR-3c.
TECHNICAL DESCRIPTION
INSTALLATION CONSIDERATIONS
Frequency: 1250 to 1350 mc
Siting: Locate IFF coordinator-range indicator,
Peak Power Output: 750 kw
master PPI indicator and radar set control
Pulse Repetition Rate: 300 pps
in CIC room. Locate radar receiver-trans-
Operating Voltages and Power Requirements:
mitter near antenna mast for short straight
110/220/440v i5%, 60 cps, 1-ph, 4.5 kva
waveguide run. Locate antenna control, gyro-
IF. Frequency: 30 mc
compass synchro amplifier, and synchro ca-
Bandwidth: 0.5 and 2 mc
pacitor unit near the radar receiver-trans-
Noise: 14 db above theoretical
mitter.
Range Resolution: 400 yd
Mounting: Deck and bulkhead. Shock mounts to
Azimuth Resolution: 8 deg
Range Accuracy: 4-mi sweep, 100 yd; 20-mi
deck; brackets to bulkhead.
sweep, 100 yd; 80-mi sweep, 2, 000 yd
Cabling Requirements:
Related Equipment: Standard Navy radar re-
peaters.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Transmitter-Receiver Unit 43ADV
1
72
25
28
954
Antenna 66AMV
1
112-3/16
19-5/8
23
80
Radar Set Control C-645/SPS
1
17-1/2
13-1/4
14-7/16
40
Antenna Pedestal 21ADS
1
26-15/16
18
25-3/4
233
Transformer CAY-303936
1
16
11-3/8
13-11/16
168
REFERENCE DATA AND LITERATURE
Technical Manual:
NAVSHIPS 900989
SR-6: 2
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