Re: [LHA-misc] RFI/EMI with Home Automation devices
Status: Beta
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From: Mike B. <bap...@cc...> - 2001-04-23 13:20:02
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Clay Jackson wrote: > > Turns out the Gigaset and the > XCams share the same frequency allocation - and the Siemens people want to > 'own' the whole band (interestingly enough, there was NEVER any interference > TO the Gigaset phones FROM the Cameras, just the other way 'round. Well, the problem is the XCams. Phones, 802.11 LANs, etc use frequency hopping technology to avoid interference. 802.11 LANs can be set to 1 of 11 frequencies in the 2.4GHz band. Cordless phones usually jump around too. I have an XCam and can't use it. No matter what frequency I set my 802.11 LAN to, the XCam receiver still receives interference and I've tried all 3 XCam channels. THe problem to me is the XCams are sloppy and hog more of the spectrum, thus any channels cause interference. And yes, Bluetooth will also be impacted - Even worse - Bluetooth and 802.11 LANs hate each other. Bluetooth picanets can drag an 802.11 network to its knees. The proposed solution is new hardware for access points with processor that know about both technologies and maks them play nice. But I believe you'll find your XCam is not gonna be very useful if you have other 2.4GHz devices around. Mike |