Cooaxial cable capacitance calculation

Find out the brand and type of cable it is, go to their web site, get their spec sheet on the cable, and find the picofarads per foot that it exhibits.

For actually measuring it, the longer a segment you use as a baseline, the more accurate your data will be.

In other words, a 20 foot piece will give you more precise information that trying to read a foot long piece.

Divide by twenty for per foot data for a twenty foot segment.

Do NOT use side cutters to cut it. Use a shear type cutter, or strip back an inch form the end with a very sharp blade such that you get a very clean, non-deformed cut on the end(s).

Ifyou can find one, use a Q-meter. Select the frequency you wish to use. Find a coil that will resonate with the stray capacitance with a known length of the cable in parallel. Remove the cable and measure how much capacitance you need to add to get back to resonance.

Bill

| Iraq: About three Virginia Techs a month irrelevant to this thread / NG

It was not in his message body, it is part of his sig, idiot.

For someone that jacks off at the mouth about what is or is not on topic, you sure show everyone just how little you know about Usenet.