In message 
<e6acec5be8405b4e936c9e9bccac10241b6...@bb-corp-be1.corp.cubic.cub>, 
dated Tue, 10 Apr 2007, "Price, Ed" <[email protected]> writes:

 >2.Yes, there is some kind of spiral (maybe coax) running part-way down 
 >the outside from the top. I doubt that this is a circularly polarized 
 >beam, pointed straight up, so the spiral must be some kind of 
broad->banding effort.

Beam straight up suggests meteorological or ionosphere radar.

>7.It seems like a lot of trouble for a receive-only antenna. The coax 
>size makes me think there might be several transmitters connected to 
>the antenna.

Agreed.

>8.The site had about a half-dozen of these antennas, with no apparent 
>spatial relationship. 

You may need an aerial view to see the relationship.
-- 
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
There are benefits from being irrational - just ask the square root of 2.
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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