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Old October 26th 07, 11:53 PM posted to rec.radio.amateur.antenna
Art Clemons Art Clemons is offline
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First recorded activity by RadioBanter: Feb 2007
Posts: 22
Default Supposed comparison of Mobile HF Antennas in November QST

Richard Harrison wrote:

No problem with a tuner. "The input power was the same on each antenna."


How can the input power be the same if it's going through the tuner? The
input power is the same at the input of the tuner, but we have absolutely
no idea what the output power from the tuner is. Isn't that a problem for
a fair test? Would not a more reasonable approach be to use something like
Wattmeter and get the antenna resonant? I've seen folks who used antenna
tuners find out the tuner can get really hot into some loads? If the tuner
is consuming some of the RF as heat, that's power not reaching the antenna
ergo not a fair test.


No problem with 360 feet. Received carrier power is proportional to
radiated power at that distance along the horiaontal path.



Isn't 360 feet within the near RF field at most HF frequencies?