Yes, this includes mechanical issues if there's no center support. Then
there's the entire issue of insuring there's no wire tension supported
by the tuner itself. But except for that...
Kim N5OP
On 7/17/2018 4:56 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?
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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--
Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, PP
SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)
/"In theory there is no difference between theory and practice. But, in
practice, there is." //– Attributed to many people; it’s so true that it
doesn’t matter who said it./
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