Volume 1
MIL-HDBK-162A
Section 2
15 December 1965
ITEM NAME: RADAR BEACON
TYPE: AN/APN-11
Power Output: 300w min average during pulses at
Radar Sets AN/APQ-13, AN/APS-3, AN/APS-I,
transmitting antenna input.
AN/APS-6, AN/APS-10, AN/APS-I5, AN/APS-19,
Coder Data
AN/APS-23, AN/APS 31, AN/APS-33 and SCR-717-T3.
Type: Range coding
Spacing (Between Code Pips)
Short Space: 15 usec nom
RELATION TO SIMILAR EQUIPMENT
Long Space: 10 usec nom
None .
Quantity of Codes: 12 used, none more
TECHNICAL DESCRIPTION
than ,1 pips or longer than 100 usec
Transmitter-Receiver Unit
Power Requirements: 115v plus or minus
Pressurization: Positive pressure of
5%, .100 to 2400 cps, I50w max and 26.5v
6.5 lbs per sq in. min should be
dc plus or minus 10%, 50w max
maintained for 2.1 hr
Antenna Data
Receiver Data
Polarization: Horizontal
Type: Crystal video
Pattern
Frequency: 9375 mc
Horizontal Plane: Omnidirectional
Bandwidth: 110 mc at 3 db down
to within 3 to I in power
Crystal Protection:
Shutter in receiver
Vertical Plane: Beam width of 30 to
waveguide attenuates incoming signals by at
40 deg in free space at 3 db down points
least 25 db when equipment is off.
Axis of Principal Lobe: Horizontal
Transmitter Data
to within plus or minus 5 deg in
Frequency: 9310 mc
free space with antenna vertical.
Frequency Stability: 2 mc for 2%
Standing Wave Ratio (-55 to plus 55 deg C)
change in primary supply voltage,
Transmitting Antenna: Less than 1.-, to
1 mc for change in duty cycle from
1 at 9310 mc
0.000.5 to 0.003 at temp range of
Receiving Antenna: Less than 3 to 1
-55 to plus 55 deg C
over entire bandwidth.
Pulse Data
Width: 0.5 usec plus or minus 1 usec
INSTALLATION CONSIDERATIONS
at 90% peak amplitude
Not available.
PRINCIPAL COMPONENTS AND PHYSICAL DATA
COMPONENTS
QTY
OVERALL DIMENSIONS
UNIT WT.
(Inches)
(Pounds)
Transmitter-Receiver Unit
1
10 x 10 x 19-21 32
30
RT-93/APN-11 or
RT-93A APN- 11
Mounting MT-459/APN-11
2
10-5/8 x 10-19/32
1
Blower Assy HD-22A/APN-11
1
2.25
Antenna Assy AS-306/APN-11
1
1-5/6 x 3-3/8 x 16-3/4
2
Radome CW-150/AP
1
2-1/16 x 4-1/16 x 4-1/8
1
Set of Accessories
1
Set of Operating Spares
11
Set of Equipment Spares
1
REFERENCE DATA AND LITERATURE
Technical Manuals:
AN16-30APN 11-3
AN/APN-11: 2
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