On 6/20/2016 8:32 AM, Pete Smith N4ZR wrote:
Looks like the best antenna I can put up in my current situation is an
EDZ. Any thoughts on the best low-power (<200 W) autotuner for this
application? I would plan to put the tuner in a weatherproof enclosure
outside and run coax to the shack, feeding power to the tuner preferably
through the coax.
Are you building a true EDZ, meaning it operates on ONE BAND and is
exactly 1.25 wavelengths long? If so, it is easy to put a coil across
the input terminals and then tap down on it to get 50 ohms balanced.
Then you can use a 1:1 balun and run coax to the shack. WAY CHEAPER
than an autotuner + weatherproof box, etc.
None of this applies if you are just driving a random length dipole
on multiple bands, and it accidentally happens 1.25 wavelengths on one
of them.
I recently was researching autotuners for my truck. It turns out
that 200 W is a tall order for almost all of them. You really need
a so-called kilowatt tuner to be sure of reliable operation at
200 watts. (Doesn't mean you can't get lucky; its a crap shoot).
Rick N6RK
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