Volume 1
MIL-HDBK-162A
Section 2
15 December 1965
ITEM NAME: INDICATOR GROUP
TYPE: N/APA-125, AN/APA-125A
30 rpm
RELATION TO SIMILAR EQUIPMENT
Sweep Range: 10 to 250 mi per CRT radius
The AN/APA-125A differs from the AN/APA125 in
Sweep Duration: 36 to 250 mi (limited by
that the servos have been deleted from the PP unit and
PRF restrictions)
added to the IP indicator, thus eliminating the need for a
Presentation: 10-in. PPI, capable of off-
cable between these units and resulting in increased
center control.
performance.
PRF: 100 to 2000 pps
Power Requirements: 115v, 400 cps, 3-ph,
TECHNICAL DESCRIPTION
1500 va, 28v dc, 50w
Presentation: 10-in. CRT (long persis-
INSTALLATION CONSIDERATIONS
tence)
Range Selection: 10 to 250 mi
Siting: Airborne.
Video Inputs: 10, 1.0 to 600v peak
Trigger Input: 5 to 100v peak, 0.6 to
Related Equipment: Associated with Radar Set
5.0 usec duration.
AN/APS-80, AN/APS-88, Indicator AN/ASA-13,
Off-Centering Data
Sonobuoy Receiver AN/ARR-62A, Radar
By External Slew (GPI or PMI): 150 mi
Identification Set AN/APX-7 or AN/APX-20.
max in the N/S or E/W direction.
By Cursor (Joystick) Slew: 500 mi
By combined Slew 300 mi
Antenna and Trace Rotation Speed: O to
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Control Indicator
1
3
19-1/2
5-7/8
12.5
C-2138/APA-125
Indicator, Azimuth and Range
1
12-3/16
21
28-3/4
110.0
IP-414/APA-125
Mounting MT-1823/APA-125
1
3-5/8
19
24
5.5
Mounting MT-1824/APA-125
1
3-1/8
12-5/16
19-5/16
2.5
Power Supply PP-1688/APA-125
1
11-5/8
15
24
or
Power Supply PP-2192/APA-125A
1
16-5/8
12-1/2
20-7/8
40
REFERENCE DATA AND LITERATURE
Technical Manuals:
Specifications:
NAVAER 16-30APA125
MIL-I-19165(Aer)
AN/APA-125: 2
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