[Dave Martin] "What's the difference between BNC cables for SDI SD/HD and Component or Reference cable BNC's or even regular Composite signal cables for that matter?"
depends, how old how much shielding, age of the cable, connector quality.
Often they are interchangeable, especially if you buy premium cables,
Canaire has a great page on their website for that info, as does wikipedia.
gary adcock
Studio37
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