If you had put the coils where they are now in the beginning with your 80 meter mono band dipole you would have probably needed less turns in the coils to get a match.
With a 1/4 wave antenna the current peak will be at the feed point and the voltage peak will be at the ends. This is why it all changed so drastically when you moved the coils. The coils have less effect the further out from the feedpoint they are. If you fed it with coax again I believe it would be matched at a lower freq than it was before.
If you try to tune up a short doublet with your tuner tread lightly. Keep the power down and watch the reflected power like a hawk. Things may start to heat up quickly. With the equipment and amount of space you have your original configuration may have been as good as it gets. Nothing wrong with experimenting though. It would be a boring hobby if it was all plug and play.
With a 1/4 wave antenna the current peak will be at the feed point and the voltage peak will be at the ends. This is why it all changed so drastically when you moved the coils. The coils have less effect the further out from the feedpoint they are. If you fed it with coax again I believe it would be matched at a lower freq than it was before.
If you try to tune up a short doublet with your tuner tread lightly. Keep the power down and watch the reflected power like a hawk. Things may start to heat up quickly. With the equipment and amount of space you have your original configuration may have been as good as it gets. Nothing wrong with experimenting though. It would be a boring hobby if it was all plug and play.
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