AN/TRC-138C Radio Repeater Set

AN/TRC-138C Radio Repeater Set

SYSTEM DESCRIPTION

SYSTEM PARAMETERS

The AN/TRC-138 is a tactical microwave line-of-sight (LOS) FM radio,

Frequency: 4.4 5.0 GHz

Power: 0.25 W

consisting of three AN/GRC-144 Radio Sets, mounted in a 21/2 ton truck.

The set utilizes a 1.4 m diameter parabolic antenna.

SYSTEM HAZARDS

HAZARD CONTROLS (to reduce or eliminate risk)

Power Density Levels (PDL) ....

This system is not able to produce potentially hazardous PDLs in excess of the safety

standard.

Open/cracked waveguides........

All open waveguides and the feed horn aperture produce potentially hazardous PDLs

within 2.5 cm. Exclude personnel from these areas and check waveguide portion of this

system periodically for breaks or cracks, and replace any suspect waveguide.

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

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

REFERENCES: TM 11-5820-773-15; TM 11-5820-926-10-HR

AN/TRC-143 Radio Terminal Set

SYSTEM DESCRIPTION

SYSTEM PARAMETERS

The AN/TRC-143 is a radio terminal set which utilizes

Frequency: 601.5 999.5 MHz (low)

Power: 8 - 20 W (low)

the AN/GRC-50 Radio Set. The set utilizes a single

1350.5 1849.5 MHz (high)

15 - 30 W (high)

SYSTEM HAZARDS

HAZARD CONTROLS (to reduce or eliminate risk)

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 ....

Operating in the low band, exclude personnel to a distance of 2 m from the antenna.

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

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

REFERENCES: TM 11-5895-453-24 P

Equipment - 109