[Elecraft] Clever antenna tuning ideas wanted

Vic K2VCO vic at rakefet.com
Thu Dec 8 19:40:48 EST 2005


Don Wilhelm wrote:

> A series circuit resonant at 30 meters will do a good job of shorting out
> the 40 meter inductance (no relay) - but the inductor used for 40 meters
> would have to be modified to compensate for the effect of the series circuit
> when on 40 and produce the same resultant inductance.

GM4ESD also suggested this and I am going to try this, since it will 
require the least modification to my existing antenna.  I will build up 
the circuit on my bench and adjust it for the reactance shown by EZNEC 
with my MFJ analyzer.  Then I'll hook it up and make final adjustments 
on the antenna.  It will be interesting to see if the antenna appears to 
perform better.


-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco


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