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#1
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![]() "Fred W4JLE" wrote in message ... What is the basis of your "high loss method" statement? "Frank" wrote in message news:O7pge.61496$tg1.25181@edtnps84... I never liked the G5RV antenna since it just seemed like a high loss method of feeding a 102 ft piece of wire. Frank VE6CB The following is based on an analysis I did for a ham Friend. Consider a 102 ft bent dipole (REF: Richards Antenna v4), fed in the center with 33ft of 300 ohm tubular, followed by 25 ft of 75 ohm twin. Frequency Total feedline loss (MHz) (dB) 1.8 24.8 3.8 4.9 7.1 2.4 10.1 10.2 14.1 1.4 18.1 3.0 21.2 9.1 24.9 2.7 28.5 3.9 If you are interested I can e-mail you the complete analysis in Microsoft Word showing various feedline combinations from 1.8 to 30 MHz. If you have a particular structure in mind I can also do the analysis. I use NEC2 based software in combination with the ARRL's transmission line analysis program. Regards, Frank VE6CB |
#3
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![]() "Fred W4JLE" wrote in message ... Frank, with all due respect I disagree with your analysis. I would appreciate your sending me the data so we may both start at the same discussion point. will get the info to me. 73 Fred Thanks Fred, I am happy when people disagree with me, since then I have a chance of learning something. I will e-mail you my analysis. 73, Frank |
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