My first thought would be to modify a car unit. Too bulky, too heavy.


G'day Ron,
Have a look at some of the car ones, and the replacement centres. Many of
the ones to suit the Aussie cars have a plastic extension shaft inside that
could be operated like a push pull cable from the cockpit. This would be
very light without the motor and most of the mounting bracket. Now where did
I leave the angle grinder?

You could even have different stops marked for different radio frequency
bands if you wanted to use the one antenna for different bands.

Add it to your checklist, just like flaps, with take off, cruise, pre
aerobatic and landing settings!

Hope this helps,
Peter