Kristian Stevenson wrote on Thu, 18 December 2008 03:11 |
All this RGBHV jargon is running together in my head...
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RGBHV just means breaking out the tiny coax that is actually in a typical HD15 cable so that you can interface it with individual cables that have far lower loss over long distances.
The usual cable of choice for long distance RGBHV is quad shielded RG6 with the largest possible solid copper center conductor, which is usually 18 gauge. You may have to look around to avoid a cable with a steel core.
Most better video splitter and distribution amps have some selectable gain to partially overcome line losses, but long runs of HD15 cable have so much loss that it is hard to overcome.
Interesting - same ad and source that I ordered my RBGHV adapters from. The key is to make the adaptor cables as short as is reasaonbly possible (usually 6') so that you get the video into the RGBHV low-loss RG6 cables.
Make sure that each of the 5 cables is as exactly the same length. I laid out my RGBHV cable package in the longest hallway in the church, and also checked the length markers on the RG6 cable to ensure that each cable was the same length within a few inches.
Compression BNC connectors are probably the easiest to use for termination. You'll probably end up with a handful of gender menders in the system because the BNC connectors tend to be just one sex.
Also, if you run the cable in a drop ceiling, or attic, make sure that the cable is plenum rated. Otherwise, put it into steel conduit. Conduit is pretty easy to work with if you can avoid having to bend it.