Wayne wrote:

snip

Interesting. I might look into this a bit.

My situation: small lot, 2 story house that is taller than the surrounding
trees on a sloping lot. There is no good place to string any kind of
dipole.
But...
The metal roofed patio cover is about 30 feet wide and 12 feet deep.

I have a 16 foot whip mounted on the patio cover, and use a tuner in the
shack for multiband operation.
I'm considering a remote ATU mounted at the base for easier matching.

The folded unipole might be an alternative for 7 MHz.

My feeling is that the remote ATU is the best thing to come along since
sliced bread and bottled beer.

I have a 33 foot vertical in the back yard with an ATU at the base.

It works very well on 80 - 15. Above that it squirts a lot of energy
into the clouds and below that there are losses in the ATU on both
80 and 160.

To mitigate those losses, I put in a relay controlled, high Q loading
coil.

Nothing to be done for the upper frequencies other than maybe a shorter
parallel vertical.



--
Jim Pennino