High Quality Content by WIKIPEDIA articles! The AN/TRC-97A Radio Set, or TRC-97, is a radio set that has 24 multiplex channels and 16 telegraph channels connected to an analog radio. The radio set is a mobile terminal that can transmit up to 40 miles straight line-of-sight at up to 1 watt, using a traveling wave tube amplifier, or 96 miles in tropospheric scatter at up to 1 kilowatt, using a tunable klystron amplifier, at a frequency range of 4.4 to 5 gigahertz. The TRC-97 can be connected to one of three mobile antennas, depending on the distance and signal strength needed. One such antenna that can be used with the TRC-97 is the MRT-2 parabolic tropospheric antenna, which is designed to cover distances of up to 160 km, or 96 miles. Another antenna was a simple feed-horn type mounted on a 30 ft pole. The third is a set of 8' parabolic dishes on 15' masts. These antennas are transported on trailers and have to be manually erected every time they are used, so knowledge of mechanics as well as electronics was needed to erect and maintain that equipment. The system was powered by a 3 cylinder diesel or later by a turbine generator.

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