Here we have a new, never used RF transfer switch. Commonly used to transfer two transmitters between two antennas or between antenna and resistive load. Also has form “c” relay contacts for remote status indication of switch position. Switched by typical military standard 28 vdc and has also been found to switch on 24 vdc but not guaranteed. A well built quality switch suitable for broadcast or other communications in the medium wave through UHF spectrum. The manufacturer, DBP Microwave, was acquired by Ducommun, Inc. Specs available online in their RF switch catalog. Sold to the original customer as an accessory part for FM HD transmitter switching. Missing original box.
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