All About Cell Phones
This is a special edition show – looking at how Cell Phones work! We look at the history of the cell phone from the earliest mobile radio telephones from the 50’s to todays fourth generation wonders. We look at the technologies including AMPS, TDMA/GSM/IDEN, CDMA (2000) up to LTE. Also covered are the basics of a cell phone network, a bit about the cellular layout and even the cellular switch. Enjoy!
Here is the video I mentioned explaining how the CDMA signal is made and then decoded using the Walsh and Pseudorandom codes..https://www.youtube.com/watch?v=XJ81CuujwYE
Antique cell phone pic courtesy Kozuch on Wikipedia
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