Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
AN/SPS-28
Operating Voltages and Power Requirements:
FUNCTIONAL DESCRIPTION
440 vac, 3-ph, 60 cps, 3.64 kw, 0.56 pf (lagging)
Radar Set AN/SPS-28 is a shipborne air-search radar
Peak Power Output: 750 kw
that determines the range and bearing of remote
IF. Frequency: 30 mc
targets.
Minimum Discernible Signal: 0.6 v
Pulse Repetition Rate: 120 to 1,000 pps in two
RELATION TO SIMILAR EQUIPMENT
ranges
Receiver Noise Figure: Less than 6 db
Individual units only are similar to corresponding
Range Accuracy:
units of radar equipments SR, SRa, SR-6(), and
+100 yd on ranges up to 20,000 yd
AN/SPS-6().
Antenna Feed Assembly: 28 folded dipoles
TECHNICAL DESCRIPTION
INSTALLATION CONSIDERATIONS
Frequency: Variable from 215 to 225 mc
Not available.
Range: 4, 20, 80, and 200 mi
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Receiver-Transmitter Group
1
72
33-9/16
25
1235
OA- 1277/SPS-28
Pulse Trigger Generator 0-329/SP
1
16-3/4
16-3/8
14
53
Radar Modulator MD-291/SPS-28
1
23-1/2
27-1/4
15-7/16
168
Video Amplifier Type CRP-50AJW
1
28-7/16
15-11/16
16-1/16
136
Range Indicator IP-99A/SP
1
18
17
32
160
Radar Set Control C-2039/SPS-28
1
15-11/16
18-3/8
13-1/4
50
Antenna Control C-2038/SPS-28
1
17-1/2
19-5/8
29-7/8
125
Motor Generator PU-376/U
1
20
17
33-1/4
565
Antenna Pedestal AB-488/SPS
1
77-7/8
44-1/2'
36
596
Antenna AS-839/SPS
1
102
210
47-1/4
588
Directional Coupler CU-570/SPS-28
1
5-9/16
5-3/16
11
8
Radio Frequency Monitor
1
24
25
22
125
IP-411/SPS-28
Power Transformer TF-11S/U
1
14-3/8
10-7/8
12-11/16
110
Switch Box SA-514/U
1
17-7/16
19-7/8
15-5/16
60
REFERENCE DATA AND LITERATURE
Technical Manual:
NAVSHIPS 92896(A)
AN/SPS-28: 2
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