Will an A/B switch work in reverse?
I have a single coax line running into my motorhome, which is usually used for satellite. Occasionally, when in an RV park with cable, I will hook up to that rather than setting up the satellite, but...
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RetiredBob wrote:
Okay, I'm unable to find a coax A/B switch locally, so I wonder if a simple splitter would work. I understand that a splitter divides the power equally between the two outputs, but if I'm only using one output at a time(either cable or satellite) would I be getting full power to that unit? Or do I need a diplexer?
There is a Radio Shack store in Portage MI. They have the A-B switch you need.
You can not use a splitter for this application.
Tha satellite receiver supplies the power to the LNB in the dish and a splitter will not pass the LNB power.
Even with the A-B switch you will have to be careful. If the switch is in the wrong position and the satellite receiver is ON when you connect to cable, you will be feeding the LNB power back on the cable system. When this happens you could damage the receiver or the park cable system or both.
The only way to safely do what you want is to install a separate connector on the side of the RV for the satellite receiver and use the A-B switch to select between the output of the receiver (A) and the park cable (B).
