I should have mentioned that it is a two element wire beam using bamboo to
support the 12 gauge stranded wire. I will tilt it and measure again. I
am feeding directly with RG 213 with a .20 spacing.
Tom W8JWN
Tom Martin wrote:
> I built a 15 meter beam with the DE cut for 21.250. The MFJ analyzer
> reads 23.000 for a 1-1 match. I added about 8 inches and the best SWR
> is at 22.500. These tests were made at 10 feet. Will the frequency go
> down when the beam is at 40 feet? I can't believe that I have to keep
> adding to the DE.
>
> Tom W8JWN
>
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