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<blockquote data-quote="Dan Mortensen" data-source="post: 147605" data-attributes="member: 2826">Re: CableThat fits in with my theory of why CAT6 is better for our purposes than CAT5e.I think the problem that I had (resulting in the workshop and videos) with the sync being lost due to cable movement is caused by the pairs&#039; capacitance changing by some combination of movement relative to each other. Pulling and squeezing in my case, flipping around in a big way in yours.CAT5e may or may not have some kind of filler inside the cable to isolate the pairs, and most often does not so that the four pairs are in direct contact with each other. Differential movement between touching pairs changes the capacitance. CAT6 seems to alway have a longitudinal spacer to keep the pair apart in order to meet spec. The spacer is in some form of X, in which there&#039;s a pair in each valley of the X so they are farther apart. Sometimes the spacer is like an HH with no gap between the H&#039;s, or maybe some other shape. That runs the whole length of the cable so the pairs are always apart.I recall times when I was flipping around an analog snake with the PA on and hearing microphonic type sound out of the speakers, so analog is not problem-free, either, although that&#039;s better than white noise, maybe.BTW, I was on a panel at the last AES convention describing my experiences and the guy next to me said that the white noise was a symptom of AES50 losing sync. FWIW.Thanks for confirming my suspicion. No guarantees, but my hope is that you wouldn&#039;t have had that problem with CAT6.FTP is Foil Twisted Pair? Hadn&#039;t heard that before.Googling finds a document I hadn&#039;t seen before that indicates that STP really doesn&#039;t have a precise meaning. Interesting. Thanks for bringing that to my attention. How much I don&#039;t know.....<a href="http://www.belden.com/blog/datacenters/STP-UTP-FTP-Cable-More-7-Types-When-to-Use-Them.cfm" target="_blank">http://www.belden.com/blog/datacenters/STP-UTP-FTP-Cable-More-7-Types-When-to-Use-Them.cfm</a></blockquote>

[QUOTE="Dan Mortensen, post: 147605, member: 2826"] Re: Cable That fits in with my theory of why CAT6 is better for our purposes than CAT5e. I think the problem that I had (resulting in the workshop and videos) with the sync being lost due to cable movement is caused by the pairs' capacitance changing by some combination of movement relative to each other. Pulling and squeezing in my case, flipping around in a big way in yours. CAT5e may or may not have some kind of filler inside the cable to isolate the pairs, and most often does not so that the four pairs are in direct contact with each other. Differential movement between touching pairs changes the capacitance. CAT6 seems to alway have a longitudinal spacer to keep the pair apart in order to meet spec. The spacer is in some form of X, in which there's a pair in each valley of the X so they are farther apart. Sometimes the spacer is like an HH with no gap between the H's, or maybe some other shape. That runs the whole length of the cable so the pairs are always apart. I recall times when I was flipping around an analog snake with the PA on and hearing microphonic type sound out of the speakers, so analog is not problem-free, either, although that's better than white noise, maybe. BTW, I was on a panel at the last AES convention describing my experiences and the guy next to me said that the white noise was a symptom of AES50 losing sync. FWIW. Thanks for confirming my suspicion. No guarantees, but my hope is that you wouldn't have had that problem with CAT6. FTP is Foil Twisted Pair? Hadn't heard that before. Googling finds a document I hadn't seen before that indicates that STP really doesn't have a precise meaning. Interesting. Thanks for bringing that to my attention. How much I don't know..... [url]http://www.belden.com/blog/datacenters/STP-UTP-FTP-Cable-More-7-Types-When-to-Use-Them.cfm[/url] [/QUOTE]

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