I just put up an elevated 40 meter vertical. The feedpoint is around 15
feet or so up and I have 8 radials on it right now. I cut the radials the
same length of the vertical section. I have a coil of around 8 turns of
coax for a choke.
It works good, as the first day I put it up, I worked some Europeans from
here in Oregon.
The thing that seems strange is that at the low end of 40, the SWR is around
1.3:1. As I go up the band, it goes up to about 1.5:1, then when I get to
the top of the band, it goes back down to 1.2:1.
Is that because some of the radials are resonating at different parts of the
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