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Old April 9th 05, 12:24 AM
Cecil Moore
 
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Ken Bessler wrote:
I remember there were discussions on this group
about altering "percieved" SWR by changing
feedline length.


With an SWR greater than 1:1, you cannot use 50 ohm
coax to achieve a match to 50 ohms by varying feedline
length. The target impedance (50 ohms) must lie on
the feedline's SWR circle. With 50 ohm coax, the center
of the SWR circle is the target impedance and cannot be
reached by simply varying the length of the feedline.

You could put a matching network at the base of the
antenna to match it at the desired frequency.
--
73, Cecil http://www.qsl.net/w5dxp


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