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Old May 23rd 06, 09:55 PM posted to rec.radio.amateur.antenna
Gary Schafer
 
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Default sgc dipole?


When used to center-feed a dipole, making the ground-side leg longer
than the hot-side leg increases the capacitance to ground on that side
and may tend to mimic the environment for which the tuners were really
designed.


It is probably because those tuners do not do well with a resonant
antenna. With one legg longer than the other there is more chance
that the antenna will be reactive and make the tuner happier.

73
Gary K4FMX
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Old May 23rd 06, 10:15 PM posted to rec.radio.amateur.antenna
 
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Default sgc dipole?

Gary Schafer wrote:

When used to center-feed a dipole, making the ground-side leg longer
than the hot-side leg increases the capacitance to ground on that side
and may tend to mimic the environment for which the tuners were really
designed.


It is probably because those tuners do not do well with a resonant
antenna. With one legg longer than the other there is more chance
that the antenna will be reactive and make the tuner happier.


73
Gary K4FMX


Maybe with dipoles, but my SGC has no problems with resonance on my
vertical.

FWIW, the vertical is resonant by itself on 40M and has a relay
switched loading coil for 80M I put in before I got the SGC.

With the loading coil out, the SGC has no problems 80M to 10M.

With the loading coil in, 160M to 20M.

Normal operation is loading coil in for 160M and 80M.

--
Jim Pennino

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