How can i remove power from an coax line with out ruining the signal?

i have a coax line runnning and it has power from it's source. I have it connect to another TV also but i don't want it to have power when it connects to the 2nd tv. I konw the cable company has a connector to remove the power but can i buy one from a some reteller?

Thanks,

Brad

Answer:
It's also called a "DC blocker". If you're in Sacramento, CA, there's a nifty little electronics store that sells them: http://www.metro-electronics.com...

If you can't find one at Radio Shack (most of them around here are having troubles), then you can get them online just about anywhere. http://www.hometech.com/video/atten.html...
I never heard there is power supply in a coax cable. Thare are two conduct lines in a coax cable, the copper line in the center is the signal line transmitting video signals, the voltage is usually below 1V, another line is like the web wrapped outside, it provide ground connection of signal source and destination.
If you want to connect 2nd TV, you need a 1-to-2 splitter. It's easy to buy in any TV shops, very cheap. (Please note, you should pay extra money to cable program provider for adding the 2nd TV connection. )
http://cgi.ebay.com/dc-voltage-block-ada...

That's for an Coaxial DC decoupler...

OR GOOGLE "Coax DC decoupler"

IF YOU WANT TO BUY LOCALLY...
Radio Shack is about the ONLY store that may carry it.that's their specialty, ADAPTORS. But you may have to order it, even from them, because that is a UNIQUE adaptor.

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