[Elecraft] LDG antenna tuner with 132 foot balanced dipole similar to a G5RV antenna

[David Bunte]

Ron -

This is not an area where I have much experience, but with 450 ohm ladder
line I would have thought you would use something other than a 1:1 balun.

A few years ago I experimented briefly with an 80 meter dipole, fed with
450 ohm ladder line.  I tried it with a 1:1 balun and with a 4:1 balun.  An
LDG AT-7000 tuned it very easily on 80 through 10 meters while using the
4:1 balun... but had trouble on some bands with the 1:1 balun.

Dave - K9FN


On Fri, Oct 26, 2012 at 8:42 AM, Ron Midwin <ronmidwin.mo at gmail.com> wrote:

> I recently bought an LDG AT600 Pro Automatic Tuner.
>
> I seem to be able to get a low VSWR on 80 & 40 meters, but on 20, 15, & 10
> meters the best it will do is ~ 1.8:1.
>
> My "G5RV" (It's really a Van Gordon 80 meter all bander fed with 450 ladder
> line, 33 feet long, and then transitions to coax thru a 1:1 choke balun;
> coax is ~ 6 feet long.
>
> Has anyone found a configuration that works better on all the bands?
>
> Previously I have been using an MFJ 962D manual tuner that is able to tune
> down below 1.2:1 on all bands.
>
> AE6RH
> K3 S/N 1997
>
> --
> Ron Midwin
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