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In Reply to: How to tell if a cable is a 75 ohm digital cable. posted by Mcmann57 on August 15, 2012 at 14:21:35:
Sure, just hook it to your TDR and find the termination that minimizes the return. If you don't have a TDR you can fake it with a scope and function generator.
Since you are trying to see if it's 75 ohms maybe you could T it along with a source to the video input of your TV and see if a 75 ohm termination minimizes the ghost.
Or you could bag measuring it and just try it in the audio application and see how she sounds. Being lazy that would be my first shot, but yes, characteristic impedance is a measurable electrical characteristic but how you do it depends on what test equipment you have available.
Rick
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- RE: How to tell if a cable is a 75 ohm digital cable. - rick_m 17:08:09 08/15/12 (0)
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