I mentioned wireless operating systems in the last page , analog cellular, PCS, GSM and so on. This page gives you an overall look at cellular radio before we concentrate on their details. Bookmark this page and go to the next topic if you don't find it relevant right now.
Wireless systems share many things in common.
The mobile makes a call . . . The Cell Site Antenna 2. A nearby cell site's antenna picks up the call from the mobile . . . The BS or Base Station 3. The call is then routed through the base station's transceiver.