A G5RV would fit and meet your needs for all band operation with a tuner.

"Ed" wrote in message
. 93.175...

Currently I have a coax fed trapped 75/40M dipole up between two
trees. The spacing of the trees (a bit over 110 feet) allows this
antenna with no extra length allowed, except for minimal support line and
insulator length.

I plan on replacing this dipole with 450 ohm ladder line feed doublet
so I can operate on more than just 75/40M, however a full 1/4 wave length
for 75 would be too long to fit between these trees.


My QUESTION(s): How effective would a balanced fed dipole of about
100 feet length be on 75M ? Should it tune OK with a tuner such as the
new MFJ balanced tuner? Or, if I were to put either the old 40M traps,
or wind coils for the new dipole to shorten 75M resonance, would it then
tune OK on all bands from 75M down with balanced feed?

Ed K7AAT

Fred W4JLE wrote:
A G5RV would fit and meet your needs for all band operation with a tuner.

Hi Fred,
The standard G5RV is a pretty good antenna for 80m, 40m, 20m, & 12m.
Not bad on 15m, but the SWR on the coax for 30m, 17m, & 10m is
greater than 40:1 according to EZNEC.

I have optimized my G5RV for 40m, 17m, & 10m operation by making the
series balanced section 36 feet of 450 ohm ladder-line.
--
73, Cecil http://www.qsl.net/w5dxp