The reason your wireless phones aren't interfering with your WiFi network is because your phones are Frequency Hopping (FHSS). Bluetooth is also FHSS, and will only interfere with WiFi networks if there are large numbers or a large concentration of Bluetooth devices in any given area. This is because you'll have so many individual devices all hopping to their on hop pattern. (Except the ones that are talking directly to each other.) For the most part, Bluetooth and 802.11a will coexist quite peacefully, neither stomping on each other. Regards, Joel -----Original Message----- From: tcwug-list-admin at tcwug.org [mailto:tcwug-list-admin at tcwug.org] On Behalf Of Nate Carlson Sent: Tuesday, July 02, 2002 4:43 PM To: tcwug-list at tcwug.org Subject: Re: [TCWUG] Bluetooth On Tue, 2 Jul 2002, Chris Elmquist wrote: > I think it's primarily an issue of front-end overload. Whenever you > Even though they are spread-spectrum, they also have a dynamic range > which, in order to keep the cost at a point we are still interested > in, is not what it could be in order to keep out the offending > signal(s). > > You get the same behavior often when trying to run a 2.4 GHz cordless > phone near your 802.11b stuff. The phone just knocks the WLAN > equipment right to zero... even though they are on different > "channels" and use different spreading sequences, they're in the same > passband and the poor receiver gets nailed by the nearby transmitter. I've got 2 separate 2.4ghz phone systems at home, and don't see any interference with my 2 802.11b AP's.. 'course, the phones are the frequency-hopping type (FHSS?), so that could be why I don't get interference there. I also didn't get any interference with either the phones or the wireless 'net when I turned bluetooth to 'discoverable' on my phone last night, but that may be because it's not actually putting anything out. -- Nate Carlson <natecars at real-time.com> | Phone : (952)943-8700 http://www.real-time.com | Fax : (952)943-8500 _______________________________________________ Twin Cities Wireless Users Group Mailing List - Minneapolis/St. Paul, Minnesota http://www.tcwug.org tcwug-list at tcwug.org https://mailman.real-time.com/mailman/listinfo/tcwug-list