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On Sat, 3 Jan 2004 23:08:16 -0700, "Ken Bessler"
wrote: The current antenna will tune up quickly and easily on all bands from 160-6 meters. I was having some instability problems untill I tied all equipment grounds to the copper baseboard heater pipe. Before I did that I would see SWR changes when touching my rig, my SWR meter, my tuner etc. Not now. I know the hot water pipe is not supposed to be a good ground but this is working extremely well. So, how do you suggest I handle the transition between my coax run from the tuner and the 450 ohm ladder line? 73's de Ken KG0WX Hi Ken, Well, gee, I don't know how to put this, but I'd leave things alone. There is almost nothing you can do that would be measureable/noticeable from the other end in all likelihood -- unless everything worked only because your antenna was nothing more than an aircooled resistor. You could double your output and it would barely nudge their S-meter. Use an ordinary 1:1 Current BalUn (to answer your last question). Any other value (one feels compelled to suggest 1:9) would be just as bad over much of those frequencies as the 1:1 (except different frequencies). The upshot of using a Current BalUn is the benefit of its choking action and a 1:9 may not exhibit that as well; especially if it is a Voltage BalUn construction. 73's Richard Clark, KB7QHC |
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