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Old December 25th 03, 10:19 AM
ZL3VML
 
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Default Tuning a folded Dipole?

Hi.
Well sort of - its a 5 element yagi with the driven element being a folded
dipole.
I have two questions, one, I need to tune it higher in the (2m) band and as
I have never used a folded dipole before, I am not sure how to go about
tuning it, but I would think I just need to shorten the dipole a fraction?
(untill I get the best swr)
Second question - how do I optimise the length of the feedline ?(quarter or
half wavelengths) as it seems to have a marked affect on the swr of the
antenna.
I am inclined to replace it with a halfwave dipole and just feed it with a
gamma match.
Thanks for any help
73
Mark - ZL3VML


 
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