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Originally posted by thebeard
I've often wondered just how much we are affecting ourselves and the world around us by filling up the wireless spectrum with these different energies and frequencies, even carrying cell phones around
Along with the SID, the phone also transmits a registration request, and the MTSO keeps track of your phone's location in a database -- this way, the MTSO knows which cell you are in when it wants to ring your phone.
The cell phone interference issue seems to be a bigger problem for people using certain carrier networks. Why?
It's true, customers on AT&T/Cingular, T-Mobile and the old Nextel networks experience this problem more frequently than those on Verizon Wireless and Sprint networks. The reason is that AT&T/Cingular, T-Mobile and Nextel use cell phone technologies that use a radio channel access method known as TDMA (time division multiple access).
Networks for AT&T/Cingular and T-Mobile are built on GSM (Global System for Mobile Communications), while Nextel uses iDEN (Integrated Digital Enhanced Network).
Because these networks operate in a "time division" fashion their radio frequency transmitters are turned on and off at fast rates. And this can often be picked up by nearby devices.
Verizon and Sprint's network use a technology called CDMA (code division multiple access). It does not use TDMA for sharing channels. CDMA transmitters are transmitting signals almost constantly, so they don't cause the interference buzz.
Originally posted by carewemust
reply to post by thebeard
It appears that "TheBeard"s post has hit the nail on the head. Until last
week, my phone service was Cingular/AT&T. My speakers would buzz
and crackle even when no calls were coming in. They'd really make noise
if a call arrived. My mouse pointer would also "walk" it's way across the
screen for no reason from time to time.