Airy R.Bean wrote:
However, one thing that the device know traditionally
as the antenna tuner doesn't do, is to tune the antenna!)

However, an antenna tuner at the source makes the
transmission line into a tuned feeder. It tunes the
antenna *system* to achieve a Z0-match that re-directs
all the reflected energy back toward the antenna.

Given a 1/2WL resonant dipole, 1/2WL of ladder-line
is a tuned feeder. 3/8WL of ladder-line plus 1/4WL
provided by the antenna tuner results in a tuned
feeder system.
--
73, Cecil http://www.qsl.net/w5dxp


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Except in the case where the feed point impedance of the
antenna is resistive and an exact match (rare, possibly
unlikely!) to the surge impedance of the feeder.

ie, for the concept of a tuned feeder, there has to be a
standing wave on it.

"Cecil Moore" wrote in message
...
Airy R.Bean wrote:
However, one thing that the device know traditionally
as the antenna tuner doesn't do, is to tune the antenna!)

However, an antenna tuner at the source makes the
transmission line into a tuned feeder.

On Fri, 21 Jan 2005 16:04:06 -0000, "Airy R.Bean"
wrote:

|Except in the case where the feed point impedance of the
|antenna is resistive and an exact match (rare, possibly
|unlikely!) to the surge impedance of the feeder.

Mutually exclusive.