Volume 1
MIL-HDBK- 162A
Section 2
15 December 1965
ITEM NAME: INTERROGATOR SET
TYPE: AN/APX-29A
Interval of Range Markers
RELATION TO SIMILAR EQUIPMENT
Range Scale
Interval
Interrogator Set AN/APX-29A replaces the AN/APX-
(mi)
(mi)
28 and the AN/APX-29. AN/APX-29A uses components
4 and 25
2
of the AN/APS-10 and AN/ UPX-7.
50
10
90
20
TECHNICAL DESCRIPTION
70 to 160
20
Frequency: 950 to 1150 mc
Duty Cycle: 0.0052
Range, Max: 180 naut mi
Environmental Limitations: 50, 000 ft max
Peak Power Output: 250w
Beam Width: 35 deg at -3 db, 100 deg at
Operating Voltages and Power Requirements
-20 db
ac: 115v, 380 to 1000 cps, 325w
Receiver Sensitivity: 83 db below Iv for
dc: 28v, 50w
2-to-1 signal plus noise-to-noise ratio
Type of Presentation: PPI
INSTALLATION CONSIDERATIONS
Used with HU-16 and SC-54 aircraft.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENT
QTY
HEIGHT
WIDTH
DEPTH
UNIT WT.
(Inches)
(Inches)
(Inches)
(Pounds)
Radio Receiver-Transmitter
1
9-1/8
13-5/32
12-11/32
39.3
RT-319B/APX
Mounting MT-1439/A
1
9-3/4
12-1/4
1-3/4
3.5
Electrical Synchronizer
1
6-39/64
14-5/32
8-25/64
13.0
SN-147/APX
Mounting MT-1484/APX
1
8-7/8
13-5/16
2-7/8
1.5
Antenna AS-874/APX
1
18-3/4
20 in. dia
22.0
Control C-1528/APX
1
5-3/4
4-11/32
4-1/2
1.6
Indicator IP-304/APX
1
7
18-3/4
14-5/16
9.5
Mounting MT-294/APS-10
1
6-1/4
10-3/16
1/2
0.25
Visor MX-238/APS-10
1
7-3/8
12-1/2
7-3/8
Rectifier Power Supply
1
9
12
11-1/2
19.4
PP-111/APS-1O
Mounting MT-295/APS-10
1
9
12
4
1.2
REFERENCE DATA AND LITERATURE
Technical Orders:
Specifications:
12P4-2APX29- Series
MIL-I-25322 (USAF)
AN/APX-29A: 2
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