Ken Bessler wrote:
If I prune the driven element on my 6m 3el quad for best
swr, do I have to do anything to the reflector or director?

For beams, the desired radiation pattern is usually
more important than minimum SWR. Using EZNEC, I've
seen a 4:1 SWR yield the desired pattern where
at the minimum 1.5:1 SWR point the F:B ratio was
terrible.
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73, Cecil http://www.qsl.net/w5dxp