Rog,

I respectfully suggest you hire an expert to address this problem.

jack


Rogelio wrote:
> I've got an interesting interference problem in a marine area, and I was 
> hoping to get some feedback on it.
>
> Every week or so, something evil on 2.4 GHz comes through and 
> drastically raises the noise floor for about a day (an analysis showed 
> me like -50 dBm), thus knocking off everyone in the boat dock area who 
> is using that AP.
>
> I was thinking about the following type of solution and wanted to get 
> some feedback:
>
> --on each dock (9 total), have two dual radios
> --mesh them on an available 5.8 GHz channel (this band is not currently 
> a problem)
> --put in a 2.4 GHz panel antenna on each end (maybe a 19 dBi one that 
> gives, say, a 30 degree X 30 degree beam coverage). 7 dBm + 19 dBi = 36 
> dBm EIRP for ISM band in U.S.
> --have panels on each radio pointing in towards the middle dock area 
> (boats in the middle would have redundant coverage.  Boats on the far 
> edge would likely only be covered by the distant AP)
> --cover each dock with two channels, so if one channel is down, another 
> one is an option (or possibly the same channel on a different polarization)
> --possibly use band filters (assuming I know which band is the problem 
> child)
>
> Any help would be greatly appreciated.  I'm quite new to figuring out RF 
> problems like this.
>
>
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>   

-- 
Jack Unger - President, Ask-Wi.Com, Inc.
Author - "Deploying License-Free Wireless WANs"
Serving the Broadband Wireless Industry Since 1993
www.ask-wi.com  818-227-4220  jun...@ask-wi.com






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