Hi Al,
You said:
The advantage of a
simple dipole, resonant length or not, fed open line is a perfect 1:1 on
any frequency on any band and you don't have to use coax anywhere.
This may be true for a few particular frequencies, with each dipole
length/feed line impedance/feed line length combination you may try. And
you could modify the lengths to make it true on some different
frequencies. It is not true that there is a perfect 1:1 SWR "on any
frequency on any band" for one dipole wire length and one open wire feed
line length combination, even if you mean the SWR the transmitter sees
and not the SWR on the line itself.
With a matching network, it can be made to be nearly true, or at least
appear to the transmitter to be true, by adjusting the matching network
for each frequency, or perhaps bypassing it on those few special
frequencies where you don't need it. You'll probably be using coax
somewhere, like between the matching network and the transmitter, unless
your transmitter has a link coupled output to feed open wire feed line
directly.
Huh? A perfect 1:1 what? Not SWR
It wasn't clear but I meant a perfect 1:1 swr looking from the transmitter.
Not on the line itself. The line has a high swr on some bands but the loss
is minimal compared at any other type of feedline arrangement.
AL
DE N6KB
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