At a trade show several years ago, a vendor demonstrated the effects
stapling cables could have on signal transmission. He took a VCR, a ch. 3
modulator and a piece of drop cable and attached the cable to a piece of
wood utilizing a regular staple gun that you buy at any home improvement
store. Used the gun as most people would, and inspection of the cable
showed it to be fine (undamaged). By the seventeenth staple, ch. 3 was
completely gone..

It doesn't take major crushing to create mismatch, and as to whether it is
significant sort of depends on what happens to be trying to get through at
the particular point where the mismatch occurs.


At http://www.cencom94.com/gpage.html9.html, there is a picture of a sweep
trace of some cable with hex-crimp connectors (gotta scroll down a little).
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CIAO!

Ed N.


"Ian Jackson" wrote in message
...
Regarding whether some male connectors create a significant mismatch due
to crushing of the dielectric, even if this does happen, is not going to
be significant in normal use (up to at least 2GHz) until the outer
conductor is almost touching the inner. You can easily prove this for
yourself by looking at the RF throughput of a piece of coax, while
progressively crushing it with a large pair of pliers.

Ian.
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