Robert Backer wrote:
Not necessarily. I use this antenna with excellent results.

http://advancedaircraft.com/index.htm

Aircraft Spruce carries them. No ground plane needed.

What glider, and where in the glider is it mounted? Is the fuselage
carbon? I'm collecting info to update my transponder article.

--
Change "netto" to "net" to email me directly

Eric Greenwell
Washington State
USA