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On Tue, 18 May 2004 23:50:17 +0000 (UTC), "Reg Edwards"
wrote: But, as I say, radiation prediction programs are entertaining, educational and satisfying. Enjoy them while you can. If you will review my posting of the results i reported you will see that I was comparing 1/4, 1/2 and 5/8-wave whips under the same conditions for each antenna. I was not and did not report the reported gain figures, rather, I posted the difference or lack there of for the comparisons. Under those conditions I feel comfortable stating that difference between using a 1/4, 1/2 or 5/8-wave whips on a vehicle (mounted top-dead-center on the roof) the overall gain differences would be one dB or less. I have observed, operating mobile using the above antennas that I really couldn't notice any real difference. Bad areas remained bad areas and I would loose the repeater in about the same location regardless which antenna I used. In other words I was comparing apples to apples and not looking for an absolute gain value, rather, the difference and I am very comfortable with the findings - both via computer modeling and actual use. very 73 Danny, K6MHE |
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