Hi Gene -

You don't say what bands you plan to operate; and that is an important
consideration. But you might include a W9INN MPD-5C dipole among
your candidates. It is resonant on 80, 40, 20, 15 and 10, and is 87' long.
It's coax fed, not fussy about feedline length, and would not require a
separate antenna tuner.

As to lightning protection, it's always a good thing, and is essential if
you
live in an area with frequent lightning. (There have been no strikes in our
neighborhood in the last 25 years, thank goodness.) But if it's convenient,
think about setting up so you can DISCONNECT your feedline before it
enters the house, during storms. (Lightning is not very smart, and doesn't
always know what it's supposed to do when it encounters little obstacles
like lightning arrestors; so sometimes it ignores them.)

73, Ed

"GJS917" wrote in message
...
I have an 80x100 foot lot. On a diagonal between trees I could put up a
flattop of 102 feet. Should I put up a G5RV or bend the wire at each end
and
go for a 135 foot center fed? My rig is a TS-440S with a built in tuner.
What type of feed do you recommend. Some say you get the least loss with
twin lead. Should I use 300 or 450 ohm? Then should I put an air choke
at
the end of the run and tie the other end of the air choke directly into
the
rig's auto tuner? Also should I install a lightning arrestor at the point
where the feed enters the house (I'll probably drop the feed to the roof
and
bring it into the attic. The shack is in a second floor bedroom.) I am
presently studying for my license so any advice would be greatly
appreciated.



Thanks,

Gene