Anyone ever done a helical wound "Slim Jim?" Since this is a 1/2 wave
antenna with a 1/4 matching section (3/4 overall), helical winding of this
form into a 3/8 overall height (approx. 12 ft. @ 28Mhz) might be possible.
The extremely low angle of radiation (approx. 8 degrees) would make this
vertical antenna desirable...

Regards