|To:||Pete Smith <firstname.lastname@example.org>, email@example.com|
|Subject:||Re: [TowerTalk] Combining antennas|
|From:||Jim Lux <firstname.lastname@example.org>|
|Date:||Tue, 03 Feb 2004 12:16:55 -0800|
At 02:02 PM 2/3/2004 -0500, Pete Smith wrote:
At 10:51 AM 2/3/04 -0800, Jim Lux wrote: ...So, the SNR will be 0.5Sa/.707(Na+Nb). If Na=Nb, this is .5/1.414 or about 4.5 dB worse than it was before.
I think so.. What you've basically got is an antenna with "adjustable" beamwidth, which can be very handy. Add adjustable phasing, and you could have a "interference nulling" system, which is even handier.
I have to say that all that I said above is nice and theoretical, and I've never actually tried it. I suspect that more than one person on the list has tried this and can tell you if theory and reality meet.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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