Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
AN/SPN-6
115 vac 10%, 60 2 cps, 3-ph, 2 kva
FUNCTIONAL DESCRIPTION
Type of Presentation: PPI of associated indi-
Radar Set AN/SPN-6 is control-approach equipment
cator
for medium and large aircraft carriers. The set is keyed
RF Power Source: Magnetron
by a thyratron and offers a choice of two pulse widths
Pulse Repetition Rate: 685 to 760 pps
and two bandwidths. Components include a standard
Pulse Width: 0.33 or 1.25 sec
receiver and a linear-log receiver. Both have anti-jam
Horizontal Beam Width: 2 deg, cosecant squar-
circuits. Aircraft and surface targets are presented on
ing to +15 deg
the indicator of Radar Repeater VK-4 or of Indicator
Vertical Beam Width: 2.5 deg
Group AN/ SPA-8A.
Receiver Bandwidth: 1 or 5 mc
Repeaters other than the VK-4 may be used. Radar
IF. Frequency: 30 mc
Set Control C-799/SPN-6, Amplifier Control C-979/SPN-
Horizontal Coverage: 360 deg
6, and the master indicator of the associated equipment
Vertical Coverage: -2 to +10 deg (from horizon)
serve as a control center.
INSTALLATION CONSIDERATIONS
RELATION TO SIMILAR EQUIPMENT
Siting: Allow sufficient space for operating and
servicing personnel. Location should provide
The AN/SPN-6 is similar to and replaces the
protection from the weather and ample venti-
AN/SPN-6(XN-1).
lation. Allow room for external connections
and locate units to insure a minimum of inter-
TECHNICAL DESCRIPTION
ference from or to other equipments.
Mounting:
Frequency: 3550 to 3700 mc
Cabling Requirements:
Range: Varies with antenna height and size of
target
Amplifier Mark 2 Mod 1B; Stabilization Data
Peak Power Output: 500 kw
Set AN/SSQ-14; Radar Repeater VK-4; Indi-
Operating Voltages and Power Requirements:
cator Group AN/SPA-8A.
440 vac 10%, 60 2 cps, 3-ph, 10 kva;
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Antenna AS-538/SPN-6
1
180
144-3/4
144-3/4
2385
Antenna Stabilizer CN-144/SPN-6
1
30-7/8
18-1/4
21-1/2
200
Antenna Control C-851/SPN-6
1
16
27-1/2
39-3/4
285
Box Switch SA-244/U
2
13-1/4
6-1/2
5-1/4
14
RF Filter Unit CTD-53225
1
15-1/2
22-3/8
6-1/2
54
Power Distribution Transformer
1
11-3/4
12-3/4
11-3/4
89
TF-160/U
Line Voltage Regulator
2
31
20
15
340
CRP-301498
Transformer-Filter Unit
2
37
14
14
321
CRP-301499
Radar Modulator MD-160/SPN-6
1
68
33
19-5/8
1129
AN/SPN-6: 2
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