On Fri, Aug 24, 2018 at 06:34 AM, Braden Glett wrote:
I use the tiny and inexpensive automatic antenna tuner from elecraft with my QCX. Works great!I have the T1 portable autotuner, from Elecraft as do several friends. fun kit and good product.
Seems to run forever on a single 9V battery.
One yabut, its really a QRP product and ~10W is the upper limit. I would like to see a similar unit
for about 25W maybe just a bit larger. SGC has one, the 211 but its more costly.
A simple auto tunner is not complex, SWR sensor, usually 7-8 relays for the inductance and
7-8 relays for the capacitance, and one to select what end the cap(s) does on. The format is
a series L and parallel C, L network. Arduino level MPU is enough.