TV / Satellite Combiner Duplexer TV/Satellite combiner allows you connect a TV aerial and satellite dish through the combiner to one cable due to the difference in frequencies for both they can be sen more→t down the same cable without interference. These can be used to input TV/Satellite send signal down one cable and then use another combiner to split the signal back out again to two devices. Specifications Signal Combiner / Duplexer 1x F-Type Female Input/Output 2x F-Type Female Input/Output DC Power pass through on satellite port Metal casing 950-2300/40-862 MHz