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Jim Lux wrote:
Jon Kåre Hellan LA4RT wrote: Jim Lux writes: dave wrote: Jim Lux wrote: Do you use a balun at the antenna feedpoint? How do you tune the inverted-V? Good RF chokes on the coax at the feedpoint and at the point of entry would go a long way to eliminating any "RF in the shack" problems. A couple 2.4" 31 mix cores with half a dozen turns on them, for instance. Whether the V is tuned or not won't have any effect on RFI or grounding. A BalUn would help a lot. Balun/choke.. tomato, tomato.. they're really all the same thing. Keep the RF off the outside of the coax. Since we are sticklers for the NEC, Homey needs a #6 wire from where the transmission line enters the dwelling to an 8' copper clad rod driven into the earth, as close as practicable. Turns out he's located in Germany, so U.S. codes aren't particularly relevant. If anything, German codes are probably stricter. But almost certainly different. Jon LA4RT Yes indeed. It's not like there's any universal consistency in the U.S. either. I recommend IEEE Std 1100 for people who really care. (and it is an international standard, so it addresses most of the regulatory issues regardless of location) Is there anyway to read that standard without spending serious money. -- Tom Horne "This alternating current stuff is just a fad. It is much too dangerous for general use." Thomas Alva Edison |
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