JIMMIE wrote:
He found he could get it to tune up on all the HF bands but only
by changing the length of his feedline between the tuner and antenna.
I was thinking it may be nice to have a tuner that could control an
external relay to switch in/out custom networks for adapting it to
site specific operating conditons.

Why even have a tuner if you are going to switch the length
of the feedline?

http://www.w5dxp.com/notuner.htm

In my Arizona implementation of this antenna, I used
relays driven by a 80C51 microcontroller to achieve
an autotuner function.
--
73, Cecil http://www.w5dxp.com