1) The Hidden IR Repeater System allows you to use an existing infrared (IR) remote control to operate up to 32 audio/ideo (A/V) components located behind closed doors or walls in an entertainment ...

For that, he developed an IR remote control multidrop extender. With a few small boards, he can run a receiver to any room in the house and send that back to a cable box, giving every TV in the ...

An amateur radio repeater used to be a complex assemblage of equipment that would easily fill a 19″ rack. There would be a receiver and a separate transmitter, usually repurposed from commercial ...