[sirjinx1974]

I was wondering what freq a normal cell phone uses and how it affects everything else. Does anybody know?

[Yakbak]

For GSM, North America providers usually use 850mhz or 1900mhz, I believe.

Internationally, they use 900mhz or 1800mhz.

[deRusett]

Tri- Mode: 1900 MHz PCS/ 800 MHz CDMA & AMPS

is one frequency, but I am sure there are others.

[Yodums]

What kind of service? GSM? Also there's CDMA and what not. A large portion of North America seems to be on GSM.. But I'm on CDMA myself.

Here's a quick FAQ page that says GSM services in the U.S. operates on 1900mhz and other countries switch use 900MHz and 1800MHz:

http://www22.verizon.com/about/commu...1023z1,00.html

[Captain Newbie]

Originally Posted by sirjinx1974

I was wondering what freq a normal cell phone uses and how it affects everything else. Does anybody know?

We're not trying to either eavesdrop or jam, are we?

(Both are _highly_ illegal in the United States)

As for the effects of a cell phone...just like any RF device, they have a very slight chance of causing biological abnormalities and random chromosome mutations. *shrug* It's a risk you run--there is no gain without risk.

[Malpine Walis]

For biological effects you can treat a cell phone as a low level microwave emitter. Unless you keep it stuck to the side of your head all day long it will not produce a noticeable amount of heating. I believe that the jury is still out on the long term effects but you can safely be exposed to large doses of microwaves for short times so you are probably quite safe. Do a google search and you can probably find something about a radar repair tech who was on the dish when the system was turned on or something similar.

[ashenfang]

more specific frequencies are;

976.25-991.27 mhz

1.76 - 2.16 Ghz

[BigRed]

Originally Posted by Captain Newbie

We're not trying to either eavesdrop or jam, are we?

(Both are _highly_ illegal in the United States)

Pfffft. I have one of these babies that I use at work cause im sick of everyone standing in the middle of the ****ing isle talking on their phone completley oblivious to everything around them when im trying to get past.
http://www.globalgadgetuk.com/Personal.htm
Works quite well When i get withlin like 30ft of them they look at their phone with a big WTF? look on their face when they see their signal die, hehehe