Volume 1
MIL-HDBK- 162A
Section 3
15 December 1965
10, 000 to 40, 000 yd, 1% of actual range
AN/SPA-8, -8A, -8B, -9
40, 000 to 100, 000 yd, 2% of actual range
ing and repeat indicators with Radio Receiving Set
100, 000 yd to 250 mi, 3% of actual range
AN/SRR-4, which is the shipborne section of the AEW
AN/SPA-8A, -8B - 300 to 10, 000 yd, +100 yd
system.
10, 000 to 72, 000 yd, 1% of actual range
This equipment features continuous range variation
72, 000 yd to 300 mi, 2% of actual range
without loss of target, time sharing of the electronic
Azimuth Accuracy:
cursor and tracking strobe, and sweep and off-centering
Within 2 deg at all antenna speeds
controls which make target magnification possible
Video Input: 1 to 2.5v
without geographic distortion. The AN/SPA-8A, -8B are
Trigger Input: 5 to 50v
single indicators used as either a tracking indicator or a
Antenna Trace and Rotation Speed:
repeater, while the AN/SPA-8 and the AN/SPA-9 consist
AN/SPA-8, -9 - 0 to 30 rpm
of separate tracking and repeater indicators.
AN/SPA-8A, -8B - 0 to 40 rpm
RELATION TO SIMILAR EQUIPMENT
Operating Voltages and Power Requirements:
None.
115v 10%, 60 2 cps, 1-ph, 1, 620w, 0.83 pf
TECHNICAL DESCRIPTION
INSTALLATION CONSIDERATIONS
Type of Presentation: Ten-in. PP[ with elec-
Siting: Allow room for servicing and ventilation.
tronic cursor and with range at 1, 2, 5, 10,
Space must be available for the indicator to
and 50 mi
tilt forward and rest on its side for servicing.
Range:
Mounting: Vertical or 3 deg forward tilt of
AN/SPA-8, -9 -
indicator unit. Both require bolting to deck
4 to 250 mi continuously variable
and bulkhead. Tilted installation r e q u i r e s
AN/SPA-8A, -8B -
base mount and bulkhead for permanent fas-
4 to 300 mi continuously variable
tening.
Pulse Repetition Rate:
Cabling Requirements: Radius of curvature of
AN/SPA-8, -9 - 60 to 2, 000 pps
cable bends should be more than ten times
AN/SPA-8A, -8B - 60 to 3, 000 pps
the diameter of the cable.
Range Accuracy:
Related Equipment: Radio Receiving Set AN/
AN/SPA-8, -9 - 300 to 10, 000 yd, +100 yd
SRR-4.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
AN/SPA-8
Azimuth-Range Indicator IP-97/SPA-8
1
38
25-1/2
24
438
or IP-97A/SPA-8
Power Supply PP-560/SP
1
30-13/32
22-1/4
20-13/32
316
Power Transformer TF-129/SP
1
23-45/64
12-29/32
8-7/64
96
AN/SPA-8A
Azimuth-Range Indicator 1 38 26 25-1/2 472
IP-97B/SPA-8
Power Supply PP-560A/SP
1
30-13/32
22-1/4
20-13/32
320
Power Transformer TF-129/SP
1
23-45/64
12-29/32
8-1/4
96
or TF-129A/SP
AN/S PA-8: 2
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