IMHO, the real problem is the location of the r.f. and not the ground. My shack is also on the second floor and I NEVER have problems with r.f. in the shack, even with high power. I've also done attic and gutter/eaves antennas, and they've ALWAYS managed to couple into house AC and telephone wiring. If you have absolutely no choice but to keep the antennas hidden (in or on the house), then you MUST decouple the antenna from your feedline. You can use lots of ferrite beads on the existing feedline, close to the antenna. If you have a current balun, use that in place of the center insulator. But if at all possible, go outside the house...preferably, away from it! Good luck, Bert, N4CW ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected]
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