Have you used a spectrum analyzer to see if it is in-band interference? If it is out-of-band, a narrow band-pass filter will make the cell site go buh bye..
If it is in-band, the cellular guys may need to install a filter. I have had UHF and VHF systems sitting right next to high power pager transmitters and with appropriate cavities, you never even knew they were there.. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dirk-Willem van Gulik Sent: Tuesday, July 08, 2003 11:22 PM To: [EMAIL PROTECTED] Subject: Re: [BAWUG] Cell phone arrays and WiFi On Tue, 8 Jul 2003, Gerard J. Cerchio wrote: > Jennifer Donnelly at Cal Com Systems assures me that > this cell installation will not affect our 802.11b network at > all. Some of our transceivers will be within 50 feet of the > cellular array. For what it is worth; at those distances, the European GSM masts in the 1800Mhz frequencies do cause the receivers of most cards to blank out due to overload when used with for example a simple omni. This is visible as short burst of no receiption and a very sudden low noise with little signal. At www.wirelessleiden.net we are currently experimenting with wave guide antenna's which have a much narrower range around the 2.2Ghz when we are deploying near a GSM mast: The whave guide: http://www.wirelessleiden.nl/wcl/cgi-bin/moin.cgi/NodeRijnVliet In the from the two sector GSM antennas, to the back/right the WiFi antenna: http://webfolder.wleiden.webweaving.org/Rijn%20en%20Vliet%20-%20July%202003/ Rijn%20en%20Vliet%20-%20July%202003-Pages/Image18.html We're not quite done testing/deploying here - so we are not quite sure yet if this solves the problems. Dw -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
