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Radio guy wrote:What kind of satellite system did you have? If the cables run to all rooms in the house there would be a "multiswitch" for Directv or Dish that will cause problems with scanner reception and some are only rated for 950-1450MHz. If you replace it with a splitter you will loose at least half of the signal every time you divide the signal. A 2-way TV splitter will have at least 3.5dB loss and a 4-way will have at least 7dB loss and so on.
Reception will also be affected depending on the frequencies you are trying to receive. VHF lo band and Hi band is not so bad with a 200ft run of RG6 at 800MHz your looking at an additional 12dB loss on top of whatever your splitter losses are. 12dB loss would leave you with about 1/17th of the signal you started with.
You can get an active "multicoupler" designed for scanner use and that will split the signals without any loss except for your long cable loss. Active splitters for cable TV use are not a good choice due to higher noise figures.
The OP didn't really mention connecting a good VHF/UHF scanner antenna outside to feed the lossy distribution system.
crypto wrote:you know, what if he just reversed the polarity on the BNC connector going into the scanner, so he used the braid on the entire old cable system as an antenna?
Since its a DX only antenna, the net effect should be much better than using the center conductor.
Blacksmith wrote:An interesting idea to be sure but since I already had the antenna it was not needed. Also I have other plans for the rest of the coax. The guy that built the place had cable lines run to every single room. He either really loved TV or really loved having cable run.
Just realized I have to climb back up there to zip tie the cable to the mast to keep it from blowing around.
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