[TowerTalk] Antenna Software...
alex.k2bb at gmail.com
Mon Feb 12 14:43:26 EST 2007
try MMANA - it's free
you may also try newer one - MMANA-GAL, from DL2KQ -
On 2/12/07, StellarCAT <RXDesign at ssvecnet.com> wrote:
> 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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