On 7/17/18 2:56 PM, Wes Stewart wrote:
Think about that for a minute. The tuner weighs something and requires
DC power, Do you want to suspend a few pounds of weight + wind load +
coax + power cable + balun(s) at the center of a horizontal wire?
In my installation, I happened to have a support at the middle, and you
can run power up the coax for most tuners. But yes, it's a consideration
if you're supporting only at the ends.
Probably not a good solution for that 1km long span across the fjord
behind your shack.
Wes N7WS
On 7/17/2018 2:34 PM, Kim Elmore wrote:
I’ll display my benighted state by asking a question: why not place an
auto-tuner at the feed point of the doublet? That way, the feed line
is flat and the doublet can be any length, assuming impedance say
desired frequencies are in tang of the tuner. Then, add common mode
chokes at the auto-tuner input and anywhere else desired. Won’t that
do the job?
Kim N5OP
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