Diplexer

UHF and VHF frequencies from different aerials can both be sent down the one cable by using a diplexer to combine the 2 signals. At the user end, another diplexer separates the 2 again. For aerials that are used to receive both UHF and VHF, only the user end diplexer will be present.

Its also possible to use a splitter to divide the signal, bvut this causes significant signal loss. Instead of dividing it up by frequency, a splitter passes some of all frequencies out to both outputs. Splitters work, but give inferior results to use of a diplexer.

Triplexers combine or split 3 different frequency bands.

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