[TowerTalk] Antenna Software...

StellarCAT RXDesign at ssvecnet.com
Mon Feb 12 14:09:07 EST 2007

I know there is an antenna group as well - I will post there 
also but I believe some here are able to respond to my 

I was wondering - is there anything that prevents one from 
designing an antenna for 80 with hi-Q coils such that the 
resonant frequency is around 3.52 - 4% (to be used as a 
reflector at the low end)... and then have a shunt capacitor (if 
needed vacuum variable) at the feed point to "tune" it up the 
band to as high as 3.9 + 4% (to be used as a director at the top 
end)? Obviously the Q of the cap is very high and it should (?) 
be able to handle the high currents I would think...


The idea is to have 2 elements with motor driven caps - 
basically a "steppir" for 80 that would follow one around AND 
allow "instant" direction change.

Will EZNEC model this very well (the lower cost $80 version)? It 
would consist of both lumped inductance as well capacitance.


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