View Single Post
  #29   Report Post  
Old March 25th 04, 05:00 PM
Cecil Moore
 
Posts: n/a
Default

acepilot wrote:
I've often thought of giving the crossed dipoles (I guess you call it a
turnstile antenna) a try on 75M since a 2 element yagi or quad there
might be a bit unwieldy :O Now if I could only remember the math
formula to figure the direction of steering by knowing the phase
difference between the feeds of each antenna.


A turnstile has a fixed 90 degree relationship between the two dipoles.
This makes it somewhat of an NVIS antenna good for satellite communications.
On 75m, a low dipole does approximately the same thing. If you are thinking
of changing the phasing away from 90 degrees, it would technically not be
defined as a "turnstile".
--
73, Cecil http://www.qsl.net/w5dxp



-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----