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I have a few more questions, but first I'd like to thank everyone for
their feedback. After doing some usenet searching, it seems that I am retracing the footsteps of those from about 1995 onwards. I'd like to thank W7EL, W8JI and others for making my head hurt. grin I feel like that character in Close Encounters making a mash-potato mountain in his living room.... I have been cutting my coax loops to less than 1/10th of a wavelength and also taking the velocity factor of the cable into account. After your help with analyzing transmission lines, and proving for myself that the outside shield is the antenna by way way of being able to attenuate it with an RF choke, I am now wondering if I should *NOT* take the velocity factor into account and make my loops with disregard to the velocity factor? Or does the jacket contribute to the velocity factor of the outer-surface of the cable? Question 2: Have we come to any conclusions about how the current gets from the outer-skin surface of the shield to the inner-skin surface of the shield? I don't want to rehash an old topic, so I'll be just as happy to say that it merely *does*. I'm wondering if there is a field set up on the outer skin edge that encompasses the inner-skin edge and transfers current that way, or can I view the inner and outer skins as more or less the same conductive skin surface that has a 180 degree bend in it so that its analogous to the inside and outside being the same sort of "outer" skin? Looks like I'm confusing myself... I'll be happy to do more usenet message searches if that will prevent a total flareup of the same old topic. Thanks and 73 Brian |
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Snap-on choke hurts shielded loop | Antenna |