View Single Post
  #3   Report Post  
Old October 12th 03, 09:52 AM
Mark Keith
 
Posts: n/a
Default

"Fart Blossom" wrote in message ...
Does anyone have a plan that I can build without a gamma match. Just
something that is a straight forward dipole. Thanks all.


Shouldn't need one if center fed. But you will need matching for any
base fed 1/2 wave. I usually use the "gamma loop" setup. Same as most
of the cushcraft verticals. Myself, for a simple 2m antenna, I prefer
a simple 1/4 wave ground plane with sloping radials. No matching
needed, and a fairly good pattern on the horizon. Just as good as a
1/2 wave usually. In theory, there is only about .3 db difference
between the two. In actual practice on VHF, many times the ground
planes work better due to better decoupling of the feedline compared
to a 1/2 wave with no extra decoupling. MK