AN/GRC-142A, B, C, D, E Radio Teletypewriter Set

AN/GRC-142A, B, C, D, E Radio Teletypewriter Set

SYSTEM DESCRIPTION

SYSTEM PARAMETERS

The AN/GRC-142 is a radio teletypewriter that utilizes an

Frequency: 2 30 MHz

Power: 200 W average

omnidirectional whip-type antenna. This system uses the

400 W PEP

AN/GRC-106 Radio Set.

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 ....

Exclude personnel to a distance of 1.5 m from the antenna.

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

Observe standard RF shock precautions. Do not touch the antenna when energized.

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

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

REFERENCES: TM 11-5815-334-12

AN/GRC-144 Radio Set (used in AN/TRC-138, AN/TRC-175)

SYSTEM PARAMETERS

SYSTEM DESCRIPTION

The AN/GRC-144 is a tactical line-of-sight FM radio that utilizes a

Frequency: 4.4 5.0 GHz

Power: 0.25 W

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 do not permit operation of this

system with any cracked, broken or open waveguide.

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

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

REFERENCES: TM 11-5820-695-12

Equipment - 50