Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
SG-6, SG-6B
Peak Power Output: 125 kw
FUNCTIONAL DESCRIPTION
Pulse Repetition Rate: 625 to 650 pps
Pulse Width: 0.37 or 1.3 -sec
The SG-6 and SG-6B are high-powered, shipboard,
surface search and zenith scanning equipments.
IF. Frequency: 30 mc
Targets are presented on a range scope, on radar
IF. Bandwidth: 1 mc or 5 mc
repeater equipment VJ or VJ-1, and on any other
Type of Presentation: One 5-in. range scope
repeaters in use. Both sweeps may be delayed for close
Range Scales: 4, 20, 80 mi
examination of distant targets.
Range Accuracy: 40 yds, 4-mi scale; 300 yds,
The SG-6, and SG-6B are similar. The SG-6B
20-mi scale; 0.45 mi, 80-mi scale
incorporates the following improvements to the SG-6:
new antenna design, RG-49/U instead of RG50/U
INSTALLATION CONSIDERATIONS
transmission lines between the transmitter and antenna,
Siting: Refer to BUSHIPS arrangement plan for
sec sweep position on the monitor scope, additional
standard layout to suit type of vessel.
filtering, and modified crystal mounts.
Mounting: Mount antenna on a plate fitted to the
mast. Provide a suitable servicing platform
below.
RELATION TO SIMILAR EQUIPMENT
Cabling Requirements: Max length of
interconnecting cables, 300 ft (except high
Lightweight equivalent of SG-5.
voltage pulse cables limited by allowable
reflections); power cable lengths limited to
TECHNICAL DESCRIPTION
maximum permissible voltage drop.
Frequency: 6275 to 6574 mc
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Radar Transmitter-Receiver
1
62
39
23
750
NT-43ADS-2 or
NT-43ADS-3
1
62
39
23
800
IFF Coordinator-Range Indicator
1
33
22
19
213
Assembly NT-55AHP
General Control Unit NT-23AJH
1
18
17
9
60
or NT-23AJH-1
Modulator NT-50AJM
1
40
30
19
345
Dual Antenna Assembly NT-66AMQ-3
1
55
37
23
548
Training Control Amplifier
1
31
26
17
240
NT- 50AJN
RF Filter Unit NT-53414
1
19
9
6
50
Switch Box NT-241066
1
15
6
5
13
1
21
12
12
60
Mk 2 Mod 1B
Power Transformer NT-303880
1
16
13
11
167
SG-6: 2
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