AN/TPN-18A Radar Set (utilized in AN/TSQ-71, AN/TSQ-72)
The AN/TPN-18 is a transportable radar system used at airstrips
Frequency: 9 9.6 GHz
Power: 192 W average
and heliports for air traffic control and ground control approach
200 kW PEP
of aircraft. This system utilizes an azimuth and elevation
HAZARD CONTROLS (to reduce or eliminate risk)
Power Density Levels (PDL)...
In the scanning mode, this system is not able to produce potentially hazardous PDLs in
excess of the safety standard. In the non scanning mode, this system is able to produce
potentially hazardous PDLs in excess of the safety standard. Establish a Nonionizing
Radiation Protection Program (IAW guidelines provided in this TB) .
Hazard distance from antenna.
In the nonscanning mode, exclude personnel to a distance of 25 m from the azimuth
antenna and 11 m from the elevation antenna. Do not operate main beam in potentially
All open waveguides and feed horn outputs produce potentially hazardous PDLs within
close proximity. Exclude personnel from these areas and check waveguide portion of this
system periodically for breaks or cracks, and replace any suspect waveguide.
Consult the equipment Technical Manual for other operator and/or maintenance hazards.
REFERENCES: TM 11-5840-281-12; TM 11-5840-281-12-1
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