The HS-4P is installed in analuminum enclosure with interlocked removable panel for safety.Ĭontrol is provided by an extended 19 in. rack panel (9 conductors required) with pushbuttons and indicator lights to show switch position. The transfer time is less than 0.5 seconds. This Main/Aux Switch design is based on the highly reliable Harris HS-4P RF motorized contactor eliminating the high impact solenoids used in conventional designs. If a test load is available, interlocks can be wired to permit the non-air transmitter to be operated into the test load. It is a 4-port unit which can handle two transmitters, one test load and one antenna system. ![]() It may be used to switch either transmitter to the station antenna system or test load (optional). ![]() The Harris® Motorized Coax Switch is designed for use as a main and auxiliary transmitter transfer switch. Motorized Transfer Switch for AM Transmitters
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