John Konitzer wrote:
The RG6 cable may have a better shield, but it's a low impedance cable
(50 ohm, I think). Composite video and 'line-in/out' audio are much
higher impedance signals (~10 kohms?). Try a non-coax shielded cable to
see if you get any improvement before buying an amp or another box.

Are you sure about the impedance for composite video? I've found a lot of references that it's 75ohms, just like RG6 coax, such as:
http://www.bluejeanscable.com/store/single/composite.htm


- Marc
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