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true or... ?
On Fri, 4 Sep 2009 19:03:02 +0200, "-.-. --.-" wrote:
Thanks for reply, Richard. Take also into account that, although i don't know much mathematic, i don't have any doubt that is impossible that this kind of antenna can have a great or also medium efficiency. Hi OM, Efficiency in percent (%) is simple math: 100 * PowerOut/PowerIn In decibels, I won't show the math, I will give some example: 100% is 0dB 95% is -0.22dB 90% is -0.46dB 80% is -0.97dB 50% is -3dB 10% is -10dB Look at your S-Meter. If any station added 5% efficiency, going from 95% to 100%, then your S-Meter would shift 0.22dB. The needle of your S-Meter is probably more than 1dB thick when you look at it. The needle would then move 1/5th of its thickness when a station adds 5% efficiency. Considering your 1/4 wave AM broadcast antenna example, is not an accident that nor military nor broadcast installations used in the past a type of antenna like the EH/HZ... ... and military brains have knowledges that we in the "civilian" world can use maybe after 20-30 years. I have been in the military - antennas work the same there too. I was a teacher of RF Systems (LF/MF/HF/VHF/UHF/SHF). There is no magic knowledge hidden by the government. And, if this really works, one don't waste time writing PDF. He start working in radio with this antenna, and if the antenna is *really* what he claim, he will be in a very short time a rich man. A very short time needs to be defined. This "antenna" has been around for a long time and no one has gotten rich (and the buyers have lost money, time, and signal). Anyone can write a useless PDF. Anyone can get a useless patent too. I have observed patent holders who post here that have forgotten their own patent numbers, their own patent claims, their own URLs, their own email addresses, and their own theory. Talk about a waste of time, but it is wasted with the vigor of a seven year old. It would seem that wasting time, money, and signal power was equivalent to earning a PhD in Einsteinomics and advanced Gaussology. 73's Richard Clark, KB7QHC |
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