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December 28th 08, 12:31 AM
posted to rec.radio.shortwave,rec.radio.amateur.antenna
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Shortwave Radio Listener (SWL) Antennas -versus- Amateur RadioAntennas
John Smith wrote:
Dave wrote: ... A random wire (e.g. inverted L) transmits nicely if you use a tuner at the feed point. Nicely is rather a broad term ... And, if I am running 1KW+, or even multi-kilowatts, and the guy on the other end is doing the same--we can communicate "nicely" on very poor antennas ... However, if I am running 5 watts, and the other guy is also, a properly constructed antenna which has been designed around efficiency and most desirable radiation pattern, along with having a correct impedance and is matched EXACTLY to the equipment, and such is done without a lossy "matchbox" or inefficient matching method--these would be of paramount importance. Physics, as much as math, is an EXACT science ... antennas are NOT in realm of "art" (gray areas, open to interpretation, is a matter of personal opinion, etc.), there is but one "best" antenna for any given distance, terrain, pattern, etc. Regards, JS |
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