Why is my 5.8ghz phone killing my 802.11g network?

ThaGrandCow

Diamond Member
Dec 27, 2001
7,956
2
0
Everytime I pick up the phone, my wireless network drops completely until I hang up. I bought the phone specifically so it wouldn't interfere with my network. I was under the impression that 802.11b and g were both on the 2.4ghz range and the old 802.11a was on 5.8ghz. Any suggestions?
 

Kromis

Diamond Member
Mar 2, 2006
5,214
1
81
If you can't get around it, you should use the good 'ol CAT6 cable.
 

Fardringle

Diamond Member
Oct 23, 2000
9,200
765
126
It sounds to me like you either have a defective phone (that is broadcasting garbage in the 2.4Ghz range, or it's really not a 5.8Ghz phone.

A quick search on Google turned up some results that seem to indicate that Uniden 5.8Ghz phones interfere with B and G wireless networks even though they are supposed to be on completely different frequency ranges.

What phone (brand and model) do you have? We might be able to track down some specific information on that unit that will help determine if it's a phone that doesn't "play nice" with wireless networks, or if there are other known issues that might be causing the problem.
 

Genx87

Lifer
Apr 8, 2002
41,091
513
126
Is your wireless working in mixed mode? If so try to force it to B or G only mode.

 

ThaGrandCow

Diamond Member
Dec 27, 2001
7,956
2
0
I forced it into G only mode, and that seemed to fix the problem. Unfortunately I still have a few B devices. Is there anything I can do or should I just suck up the cost and buy new wireless cards for the B devices?

Also, why would that make a difference?
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
G uses different modulation techniques (google cck and ofdm if you really want to know) and is better able to handle noise and multipath interferrence.

That's my geek answer.

easy answer - more modern use of the radio channels to better handle noise.
 

ThaGrandCow

Diamond Member
Dec 27, 2001
7,956
2
0
Originally posted by: spidey07
G uses different modulation techniques (google cck and ofdm if you really want to know) and is better able to handle noise and multipath interferrence.

That's my geek answer.

easy answer - more modern use of the radio channels to better handle noise.

And picking up a 5.8ghz phone would cause disruptions all the way down to 2.4ghz? Or is it more like the phone puts out such a strong signal that everything is disrupted?
 

WiseOldDude

Senior member
Feb 13, 2005
702
0
0
My 5.8 phone is within 3 feet of my 11g router and they do not interfer with each other at all. Buy a better phone or router
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Originally posted by: ThaGrandCow
Originally posted by: spidey07
G uses different modulation techniques (google cck and ofdm if you really want to know) and is better able to handle noise and multipath interferrence.

That's my geek answer.

easy answer - more modern use of the radio channels to better handle noise.

And picking up a 5.8ghz phone would cause disruptions all the way down to 2.4ghz? Or is it more like the phone puts out such a strong signal that everything is disrupted?

meh, it happens.

signal quality much more important than signal strength. I've run full blown RF spectral analysis of RF environments - there is crap everywhere. I'm not surprised your phone is interferring.

the 2.4 specturm is becoming WAY overcrowded.

how about googling your particular model of phone and report back?

 

ThaGrandCow

Diamond Member
Dec 27, 2001
7,956
2
0
Originally posted by: spidey07
Originally posted by: ThaGrandCow
Originally posted by: spidey07
G uses different modulation techniques (google cck and ofdm if you really want to know) and is better able to handle noise and multipath interferrence.

That's my geek answer.

easy answer - more modern use of the radio channels to better handle noise.

And picking up a 5.8ghz phone would cause disruptions all the way down to 2.4ghz? Or is it more like the phone puts out such a strong signal that everything is disrupted?

meh, it happens.

signal quality much more important than signal strength. I've run full blown RF spectral analysis of RF environments - there is crap everywhere. I'm not surprised your phone is interferring.

the 2.4 specturm is becoming WAY overcrowded.

how about googling your particular model of phone and report back?

I did, everything I can find says it's wireless network friendly, can't see anyone posting about problems with their network.
 

Genx87

Lifer
Apr 8, 2002
41,091
513
126
Originally posted by: ThaGrandCow
I forced it into G only mode, and that seemed to fix the problem. Unfortunately I still have a few B devices. Is there anything I can do or should I just suck up the cost and buy new wireless cards for the B devices?

Also, why would that make a difference?

What options do you have for the router? Do yo have the ability to specify A, B-G?

Usually on these soho wireless routers it offers you the ability to run in A and B-G, or A, or B-G.

Were you running it in a mode that allowed for A + B-G operation? If you were running it b-g only and it crapped the connection, I dont know the full reason for it doing that. But A + B-G I can see the phone screwing with the A range and knocking the entire thing offline.