View Single Post
  #15   Report Post  
Old November 28th 09, 01:08 AM posted to sci.electronics.design,rec.radio.amateur.antenna
Jeff Liebermann[_2_] Jeff Liebermann[_2_] is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2007
Posts: 1,336
Default Satellite Watching

On Fri, 27 Nov 2009 16:29:22 -0800 (PST), "
wrote:

I fiddled with the AMOS 1090 and didn't like the big dip in the
vertical axis. No amount of running the optimizer could get rid of it.


http://802.11junk.com/jeffl/antennas/AMOS-5-1090MHz/
for the curious. Yeah, the side lobes are not going to go away with
the 5 element model. However, if you add elements, such as the 7
element model:
http://802.11junk.com/jeffl/antennas/AMOS-7/
the side lobes are somewhat reduced. With 40dB difference between the
major lobe and any of the side lobes, I don't think you'll have a
problem.

--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558