December 2nd 06, 08:32 PM
posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Jul 2006
Posts: 444
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Yagi efficiency
RADIATED VERSUS LOSSES
John Smith wrote:
Dave wrote:
If a simple dipole is fed with 100 watts and radiates 95 watts, it is
95% efficient.
How are you measuring the antennas "output" or "radiated power?"
--and--
How much of that 95 watts is spent in heating the dielectrics and metal
(or is that "missing" 5 watts the heating power? And, how did you
measure that?)
JS
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