can any one help me out to know the basics of a cell phone. about its antenna and how it communicates with the tower. and also is it true that keeping the mobile near our heart is dangerous?
for learning the basics send me the link of some tutorial website.
there is not any proven cause about the harm of GSM in heart , but many scientist claims that it is harmfull for body.
For knowing about cellular phone it is sattelite form and BTS form you should read
The GSM System for Mobile Communications.