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Roy Lewallen wrote:
That might not be a fair comparison, since the pattern might be quite different with and without the resistors. To determine what fraction of the applied power is dissipated in the resistors, simply click the Load Dat button. Well, the shape of the pattern looks the same. The Load Dat function produces 3015 watts into the antenna (high feedpoint impedance) and 1399 watts dissipated in each resistor. That's 217 watts not dissipated in the resistors out of 3015 watts into the antenna for an efficiency of about 7.2%, in the neighborhood of a mobile antenna on 75m. -- 73, Cecil http://www.qsl.net/w5dxp |
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