Thread: Dish reflector
View Single Post
  #2   Report Post  
Old April 20th 09, 10:07 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
external usenet poster
  
First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Dish reflector
Art Unwin wrote:
Kraus states that for a helix one should not use wire shorter than two
wavelength which I suspect is a substitute calculation for the VF
change from a straight radiator.

Because of adjacent coil coupling, it takes
more wire to achieve the phase shift effect
of a straight wire.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com
Reply With QuoteReply With Quote