AN/FSQ-84 Radar System

AN/FSC-79A Satellite Communications Terminal (Modernized, Heavy Terminal)

SYSTEM DESCRIPTION

SYSTEM PARAMETERS

The AN/FSC-79 is a satellite communications terminal that utilizes an

Frequency: 7.9 8.4 GHz

Power: 6300W max

18.3 m diameter parabolic dish antenna with a cassegrain feed and four

traveling-wave tube HPAs.

SYSTEM HAZARDS

HAZARD CONTROLS (to reduce or eliminate risk)

Power Density Levels (PDL) ....

This system is able to produce potentially hazardous PDLs in the main beam of the

antenna in excess of the safety standard. Establish a Nonionizing Radiation Protection

Program (IAW guidelines provided in this TB) .

Open/cracked waveguides .......

All open waveguides and loose or open flanges produce very hazardous PDLs within

close proximity of the break. Exclude personnel to within 4.2 m from a fully open

guide at the transmitter. (The system uses a pressurized waveguide interlocked with the

transmitter to prevent operation without adequate guide pressure).

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

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

REFERENCES: TM 11-5895-358-14

AN/FSQ-84 Radar System

SYSTEM DESCRIPTION

SYSTEM PARAMETERS

The AN/FSQ-84 is a radar system designed to provide high resolution

Frequency: 9.0 9.16 GHz

Power: 180 W

aircraft identification. This system consists of the AN/FPN-40 Ground

Control Approach radar configured with the AN/TPX-41 Interrogator

Set. This system utilizes two prime-fed parabolic antennas (azimuth

and elevation).

HAZARD CONTROLS (to reduce or eliminate risk)

SYSTEM HAZARDS

Power Density Levels (PDL) ....

In the nonscanning mode, this system is able to produce potentially hazardous PDLs in

the main beam of the antenna in excess of the safety standard. Establish a Nonionizing

Radiation Protection Program (IAW guidelines provided in this TB) . Follow hazard

criteria for the AN/FPN-40 and AN/TPX-41. Prohibit directing either non-scanning

main beam of the AN/FPN-40 antennas to the AN/TPX-41 shelter.

Hazard distance from antenna ....

When operating in the non-scanning mode, limit ground personnel to a distance of

24.4 m along the main beam of the elevation antenna.

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

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

hazards. Instruct personnel not to use the "Switch Viewing" window while the

transmitter is on.

REFERENCES: TM 11-5840-345-20

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