Thanks, Rick - I thought the EDZ was by definition usually a multi-band
antenna - no matter, what I want is to avoid the vagaries of the G5RV
and operate as many bands as possible, horizontally polarized. just5
happens that I have ~135 feet between some convenient mounting points.
LDG makes a 200-watt tuner, but I'll only be running 100 watts (a K3),
so I thought a little headroom wouldn't hurt.
73, Pete N4ZR
Download the new N1MM Logger+ at
<http://N1MM.hamdocs.com>. Check
out the Reverse Beacon Network at
<http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.
On 6/20/2016 12:38 PM, Richard (Rick) Karlquist wrote:
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
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|