AN/TSQ-71A, B Landing Control Central

AN/TSQ-71A, B Landing Control Central

SYSTEM DESCRIPTION

SYSTEM PARAMETERS

The AN/TSQ-71 is used to direct aircraft in a tactical

Frequency: 9 9.6 GHz (AN/TPN-18)

environment and to provide ground control approach (GCA)

116 150 MHz (AN/ARC-73A)

capabilities. This system consists of one AN/TPN-18 radar set

225 400 MHz (AN/ARC-51BX)

(azimuth/elevation dish antennas), two AN/VRC-46 radio sets

30 76 MHz (AN/VRC-46)

(whip-type antenna), three AN/ARC-73A transceivers

(omnidirectional blade/whip antenna) and three AN/ARC-51BX

Power: 192 W average; 200 kW PEP (AN/TPN-18)

transceivers (omnidirectional blade/whip antenna).

25 W (AN/ARC-73A)

25 W (AN/ARC-51BX)

5 W Average, 35 W PEP (AN/VRC-46)

HAZARD CONTROLS (to reduce or eliminate risk)

SYSTEM HAZARDS

Power Density Levels (PDL) ....

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 ..

For the AN/VRC-46 radio set, exclude personnel to distances of 1.0 m from the

antenna. For the AN/ARC-73 radio set, exclude personnel to distances that are greater

than 1.0 m from the antenna. For the AN/TPN-18, 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 the main beam of the AN/TPN18 in potentially occupied

areas.

Open/cracked waveguides.......

For the AN/TPN-18, all open waveguides and feed horn outputs produce potentially

hazardous PDLs within close proximity. Exclude personnel from this area and do no

permit operation of this system with any cracked, broken or open waveguide.

RF shock/burn .....................

Observe standard RF shock precautions. Do not touch any system antenna (excluding

AN/TPN-18) when energized.

Other................................

Consult the equipment Technical Manual for other operator and/or maintenance hazards.

REFERENCES: TM 11-5895-474-12

Equipment - 130