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true or... ?
On Tue, 1 Sep 2009 00:23:31 +0200, "-.-. --.-" wrote:
Like the precedent post on underground antennas systems, i'm just curious and happy if someone *demostrate* me that a strange antenna have a incredible efficiency. Hi OM, Demonstrate is not possible. The antenna radiation is not correctly described. Consider: a commercial AM quarterwave, vertical antenna is probably 95% to 99% efficient. To have an incredible efficiency would add only 4% more to a very simple design that has been around for 100 years. +0.2dB or less is not incredible efficiency. You cannot hear 0.2dB difference in sound, you cannot measure 0.2dB RF difference except with great difficulty. 73's Richard Clark, KB7QHC |
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