MIL-HDBK-162A
Volume 1
15 December 1965
Section 1
ITEM NAME: RADAR SET
TYPE: AN/MPN-5, AN/MPN-5A
Search System: 50 mi
operators in identifying aircraft.
Radial Blind Speeds
The Radar Sets can be set up to operating positions
Precision System: 77 knots
from a mobile pack condition in 2-1/2 hours. If the radar
Search System: 124.5 knots
sets are moved from one runway to another, operations
Available Glide Path Angles (Precision
can be resumed in 30 minutes providing that the hard
Elevation System): plus 2 to plus 5 deg
stand has been properly surveyed and constructed.
Touch-Down Point location Limits
Minimum: 2500 ft
RELATION TO SIMILAR EQUIPMENT
Maximum: 7500 ft
Radar Set AN/MPN-5A incorporates some major units
Precision Radar System Resolution
which have been modified slightly and some of later
Azimuth: 1.2 deg
design. All major units used in the two Radar Sets are
Range: 400 ft
interchangeable, some may need minor modifications
Search Radar System Resolution
before they can be interchanged.
Azimuth: 1.4 deg
Range: 1% of sweep range or 650 ft
TECHNICAL DESCRIPTION
whichever is greater.
Frequency Range
Receiver Data (Precision and Search)
Precision System: X-Band, 9000 to 9180
Type: Superheterodyne
mc
Intermediate Frequency: 30 mc
Search System: S-Band, 2740 to 2900 mc
Output: plus or minus 2v video amplitude
Communications System
Antenna Data
LF: 200 to 500 kc (AN/ART-13).
Azimuth Antenna: Modified beavertail
HF: 2000 to 18, 100 kc (AN/ART-13 and
pattern to give 4 deg coverage in
AN/ARR-15).
elevation.
VHF: 100 to 156 mc (AN/ARC-1).
Beamwidth: 57 min. in azimuth.
UHF: 225 to 399.9 mc (AN/ARC-27).
Elevation Antenna: Cosecant Square
Frequency Control
pattern to 15 deg in azimuth
Precision System: The highly stabilized
Beamwidth: 47 min. in elevation.
circuit employed eliminates the need
Search Antenna: Cosecant Square pattern
of true frequency control.
to 25 deg in elevation.
Search System: afc (motor driven fre-
Beamwidth: 2.2 deg in azimuth.
quency control of magnetron).
Scanning Rates
Peak Power Output
Azimuth and Elevation: 2 looks per sec
Precision System: 25 kw
Search: 15 rpm, 30 rpm
Search System: 500 kw
Scanning Ranges
Communication System
Azimuth Antenna: 20 deg in azimuth
LF: 5.5w (AN/ART-13).
Elevation Antenna: 7 deg in elevation
HF: 31w to 90w depending on freq
Search Antenna: 360 deg
(AN/ART-13).
Power Requirements: 120 or 208v, 60 cps, 3 ph, 4-wire
VHF: 8w (AN/ARC-1).
plus or minus 15% with 5% fluctuation, 28 kva max,
UHF: 10w (AN/ARC-27).
0.9 pf from commercial line or from 3 Diesel engine
Pulse Repetition Rate
generators (two 25 kw and one 7 kw units).
Precision System: 2, 100 pps
Search System: 1200 pps
INSTALLATION CONSIDERATIONS
Pulse Duration
Siting: A typical hardstand area should be 80 ft
Precision System: 0.5 usec
long, 40 ft wide and made of concrete to
Search System: 0.8 usec
withstand a wheel load of 9000 lb per wheel.
Duty Cycle
Precision System: 0.0012
Related Equipment: Some units of the AN/MPN-5
Search System: 0.00096
and the EN/MPN-5A are interchangeable.
Range Limits
Precision System: 10 mi
AN/MPN-5: 2
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