Radio and basebands

[VyprNoch]

Hi guys,
I would like to know more about what is radio in our cell phone, what are the basebands I see mentioned on the posts here like AT&T uses different basebands than other carriers. What exactly does that mean? An what are frequencies and how do they work?
Thanks a lot.

 

[MrSmith317]

Ack, I'd be hard pressed to be able to condense the subject enough to fit here and/or make it understandable. Maybe start here: Baseband - Wikipedia, the free encyclopedia

As simply as I can put it, is a baseband is a range of frequencies. And again for frequencies, start with wikipedia: Radio frequency - Wikipedia, the free encyclopedia