Saturday, October 22, 2022

How Cell Service Actually Works - by Wendover Productions

https://youtu.be/0faCad2kKeg

19 minutes

a great overview of the cellphone system and the history of radio communications

near the end they explain spreading codes and such - cool

this is basically the same as public safety radio communications -
except that cellphones use more advanced modulation techniques -
cellphones can jam 16 simultaneous messages thru 1 radio channel -
whereas public safety can only do 1 to 4 iirc (at this time)

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