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Old September 29th 06, 03:25 PM posted to rec.radio.amateur.antenna
Cecil Moore Cecil Moore is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 1,614
Default First homebrew antenna and a question

jawod wrote:
I did not change the 300 ohm window line (at 31 feet).


If that's the 300 ohm ladder line with heavy insulation,
it has a VF around 0.8 and Owen's feedline calculator at:

http://www.vk1od.net/tl/tllc.php

says that 1/2WL at 14.2 MHz is ~27.7 feet. If you shorten
your 300 ohm section by about 3 feet, you will have close
to a standard G5RV with the minimum SWR points where they
should be.
--
73, Cecil, http://www.qsl.net/w5dxp