Volume 1
MIL-HDBK-162A
Section 3
15 December 1965
ITEM NAME: INDICATOR GROUP
TYPE: AN/SPA-SC
Trigger: 5 to 50v, positive
the regular range strobe control. Another feature is that
Antenna and Trace Rotation: 0 to 40 rpm
a switch can be set to present the range rings either in
Range Selection
the usual position on the video display sweep, on the
Centered PPI: 4 to 300 mi, continuous-
cursor where they appear as range markers, or in both
ly variable.
places simultaneously.
Off-Centered PPI: 4 to 300 mi, contin-
It has provisions, when used with the AN/SRR-4 or
uously variable.
AN/WRR-1 equipment as an AEW tracking indicator, to
Range Accuracy
place either the AEW aircraft or its own ship at the origin
300 to 10, 000 Yds: plus or minus 100
of the electronic cursor so that the operator can read
yds.
directly the range and bearing of targets from either the
10, 000 to 72, 000 Yds: plus or minus 1%
AEW aircraft or his own ship.
of actual range.
72, 000 Yds to 300 Mi: plus or minus
2% of actual range.
RELATION TO SIMILAR EQUIPMENT
Bearing Accuracy: Witnin 2 deg at all
antenna speeds.
The AN/SPA-8C is similar to, but not completely
Power Requirements: 115v plus or minus
interchangeable with the AN/SPA-BA.
10%, 60 plus or minus 3 cps, single ph,
1650 va, 97% pf
TECHNICAL DESCRIPTION
INSTALLATION CONSIDERATIONS
Presentation: 10 in CR tube.
Pulse Repetition Frequency: 60 to 3000
Related Equipment: (Required but not
pps.
Supplied) Interconnecting Cables as
Input
required, Terminal Tubes as required,
Video: 1 to 2.5v, positive
Synchros as required, Test Equipment
as required.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
SHIPPING DATA
COMPONENT
BOXES
OVERALL DIMENSIONS
UNIT WT.
(NR.)
(Inches)
(Pounds)
Azimuth-Range Indicator IP-97D/SPA-8
1
35 x 39-1/2 x 46-3/4
700
Power Supply PP-560C/SP
1
27-1/2 x 33 x 36-3/4
465
Power Transformer TF-129A/SP
1
10-3/4 x 17-1/2 x 30-3/4
150
Set of Indicator Accessories
1
Components Case CY-1B64/SPA-BC
1
18-1/8 x 20-1/8 x 21-5/8
Set of Shock Mounts including:
1
(2) Technical Manual NAVSHIPS 93133
(2) Maintenance Standards NAVSHIPS
93133.42
EQUIPMENT SUPPLIED DATA
COMPONENT
BOXES
OVERALL DIMENSIONS
UNIT WT.
(NR.)
(Inches)
(Pounds)
Azimuth-Range Indicator IP-97D/SPA-8
1
25-1/2 x 29-1/4 x 39-3/4
460
Power Supply PP-560C/SP
1
20-1/2 x 22-5/16 x 30-3/8
309
Power Transformer TF-129A/SP
1
8-1/4 x 12-7/8 x 23-11/16
112
Components Case CY-1864/SPA-BC
1
15-1/2 x 15-1/2 x 18-3/4
76
AN/SPA-SC: 2
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