"Cecil Moore" wrote in message
. ..
John Doe wrote:
2] I live in a Antenna restricted community, and I have a 40ft pine
tree in my back yard.

Now you are getting somewhere. Run a 40 foot vertical wire
up the tree and use some of the upper limbs for a top hat
made out of small wires. Feed it at the base of the tree
with an autotuner. A 40 foot vertical will radiate ten
times as much RF on 160m as will a 10 foot vertical.
The addition of top hat wires can double that figure.
You may get such an antenna to be 10% efficient.

As far as radials go - They are out of the question.

At the autotuner, you need a counterpoise of some kind
unless you live in a salt water swamp. If you can bury
coax, can you also bury a 100 foot counterpoise? Note
that the ground causes the counterpoise to have a low
velocity factor so 1/4WL of wire is not necessary.
--
73, Cecil http://www.w5dxp.com

1] The 160m whip assy that I originally planned to use is CENTER-LOADED
which I think is better than a base loaded whip?

2] If I decide to go with a 30 or 40 foot length of bare wire up the
tree, How long should the TOPHAT wires be?

73's