AN/FSC-78B Satellite Communications Terminal (Modernized, Heavy Terminal)

AN/FSC-78B Satellite Communications Terminal (Modernized, Heavy Terminal)

SYSTEM DESCRIPTION

SYSTEM PARAMETERS

The AN/FSC-78 is a satellite communications terminal that utilizes

Frequency: 7.9 8.4 GHz

Power: 6300 W max

an 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

Equipment - 41