Learning is a two way street. By reporting back, we all
have gained a little beneficial experience. Thanks for
posting back.

Why length is important - the longer cable was approaching
one-quarter wavelength. As cables get longer and approach a
one wavelength, then new problems arise - become more
dominate. Wavelength is why a longer cable can have more
problems.

Ptyrider wrote:

w_tom wrote:
I has nothing to do with wavelength. A longer cable has more signal
loss, and the signal/noise ratio decreases because of cross-talk.
(Which is why using the proper twisted pairs fixed the problem!)

Read up on RF transmission lines. A properly terminated cable is not
affected by "wave length", as it has no standing waves.

Virg Wall