[BC] lpfm question

Ron Youvan ka4inm at tampabay.rr.com
Wed Feb 18 20:13:12 CST 2009


> IF it weren't for wanting to go with circular polarity...
> why not use a batwing / superturnstile antenna?
> Seems like they're within a dB or so of true omni, and are definitely 
> broadband enough if constructed right (I mean, if they handle an entire 
> 6 MHz TV channel with reasonable flatness...)

> And they avoid the pattern distortion that a pole or side-mounting 
> introduces on almost every other antenna, since the mounting pole is 
> "inside" the antenna...

> I do note that not having a significant vertical radiation pattern is a 
> shortcoming...

   The modern cp turnstile is the Dielectric TDM antenna, made in 2 to 6 and FM.
-- 
    Ron  KA4INM - For perfect happiness, remember two things:
                  (1) Be content with what you've got. (2) Be sure you've got plenty.




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