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BNC Cable Interference

Posted: 26 Nov 2009, 01:05
by Tanuki
I use a BNC cable to output to my display. It is five pronged(RGBBW). This is the second BNC cable I have used and the second display that I have used with the BNC.

All of them have ghosting issues. I can get rid of them for a time by jiggling the connnectors, moving wires, removing and attaching, etc. but they will always come back eventually. Sometimes I can get it to last a few weeks sometimes I do not even have time to sit down before it is ghosting again.

Does anyone have any experience with using BNC connections in this way? Any suggestions for the problems? I cannot decide if it is the connections or the position of the wires that is causing the problems. I do know that at lower resolutions the problem is not there or at least undectable.

I am used to this by now but it is an annoying thing to deal with.

BNC Cable Interference

Posted: 26 Nov 2009, 13:14
by Gilly
probibly poor impedence matching and or poor shielding on the cables...

does using VGA connection (if that is possible) exhibit the same problems?

BNC Cable Interference

Posted: 27 Nov 2009, 00:06
by Tanuki
does using VGA connection (if that is possible) exhibit the same problems?


VGa is fine. Monitor(s) are dual input. I was thinking of wrapping the cables in something, foil maybe.