Posted for "George Shattuck" <sgs@plantationcable.net>:

For what it is worth in the current discussions about the transponder antenna,
here is my installation.  It is outboard in the starboard wing.  I have always
had good reply, paint etc.  The ground plane is a screen material bonded onto
foam.
 
 George Shattuck
 N320GS
 1380 hours