[Antennas] Fluid Motion Antennas

[Igor Sokolov]

>    You are correct about having preselects on each band, however, you can
remotely (1) "tune" the antenna for any frequency between 20 and 6 meters
for best SWR and (2) you can also have a direct interface between your rig
and the antenna so that it will tune whatever frequecy you have on your
transceiver.  Again, fine tuning may be done from the shack for minimizing
SWR.
>
> Ron W7MRR

Hi Ron,
What sort of interface is that. Does it read the freq from the radio (How is
that done?) and the antenna controller has got unlimited number of memories
so that for every Khz  settings for all the elements are stored there? I
understand it is possible to adjust the elements from the shack manually.
But the way optimum F/B maintained automatically while tuning across the
entire 20m band is not so clear.

Igor UA9CDC