Yeah. It does sound like a pretty complex issue that would be best served by a consultant specializing in this sort of problem.
Can anyone on the list provide the necessary expertise or put Roger in touch with someone who can? Sent via BlackBerry from T-Mobile -----Original Message----- From: Jack Unger <jun...@ask-wi.com> Date: Fri, 01 May 2009 22:47:33 To: <scubac...@gmail.com>; WISPA General List<wireless@wispa.org> Subject: Re: [WISPA] marine interference problem on 2.4 GHz 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. > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > -- 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 -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/