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Old 07-08-2005, 08:27 PM   #1
dustin_wielenga
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Question about interference between network and phone


My question is about 802.11g wireless networks. They run on 2.4Ghz frequency. We have two seperate phone lines in our house, and both are hooked up to wireless 2.4Ghz phones. There has not been any interference with this setup so far.

However, I heard that if you have a 2.4Ghz phone and 2.4Ghz network, there will be some interference. Does anyone know anything about this? How bad will the interference be?

Thanks for any help.
 
Old 07-09-2005, 09:54 AM   #2
Lleb_KCir
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anytime you have multiple devices running in or around the same frequency you run the risk of interferance. that is not to say that you will have interferance, just the chance of it.

perfect example was when aDSL first hit the public market several years back. 900Mhz wireless phones could cause you to lose sync with some of the Alcatel external Modems, and in extreem cases to never get sync when you had the 900Mhz phone in the area just due to the fact that both xDSL and 900mhz phones work in the same frequency range and CAN cause interferance.

saw it several times, but then there were other times as long as the base was not near the modem it was not a problem.

if you are not having wierd issues and you can keep the base of each device apart from each other you shoudl be ok.
 
Old 07-09-2005, 11:08 AM   #3
dustin_wielenga
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Thank you for your reply! If the base phone and the router (hub?) are 10 feet away, is that good enough, or would it need to be bigger?
 
Old 07-09-2005, 11:19 AM   #4
Lleb_KCir
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with the xDSL we needed to keep them at least 30ft apart if there were problems. if not we just informed the owner that if they have problems to move the base further from the modem/router.
 
Old 07-09-2005, 03:25 PM   #5
dustin_wielenga
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Thanks, I'll have to see if I can make this work.
 
Old 07-09-2005, 07:40 PM   #6
Hangdog42
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The other thing to do is set the wireless access point to one extreme end of the spectrum. Most access points allow you to pick a channel (usually 1 through 11) and if you pick either one or eleven, it tends to minimize the interference problems from 2.4GHz phones.
 
Old 07-10-2005, 01:20 AM   #7
dustin_wielenga
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Thanks Hangdog, I'll try that once if we get it. Would changing this have any performance issues?
 
Old 07-10-2005, 09:16 AM   #8
Hangdog42
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It really shouldn't affect performance at all. I've had my AP set to chanell 11 for quite some time and I've never really had an issue with throughput. Of course even for an 11b rig, the router is likely to be faster than the cable or dsl connection, so wireless isn't going to be your bottleneck.
 
Old 07-10-2005, 03:24 PM   #9
dustin_wielenga
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Quote:
Originally posted by Hangdog42
Of course even for an 11b rig, the router is likely to be faster than the cable or dsl connection, so wireless isn't going to be your bottleneck.
That's all that really matters, so that's good news! Thanks
 
  


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