I saw this in a thread: "Or he could make his own with RCA cable and Radio shack F to RCA adapters. That's what I did with my DLS. It works great and it was a fraction of the cost of a "real" cable. It's also easy and cheap to make large runs this way. Many people on the HTF have recommended this option." What is an F to RCA adaptor? I have some RCA male plugs that you solder onto coax, and I've had them for years. I used to make my own RCA cables for audio. Can I just use those? Can I use run of the mill coax, the type used for TV antennas, cable TV, etc.? If I do this, the outside of the RCA connector will be attached to the sheathing of the cable (the shielding part). Is this desireable?