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) -- You received this message because you are subscribed to the Google Groups "massfire" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/massfire/CAFXWwKZoG-3e2foE1EUN0qKRMCqsNZuzgA0F%3DvRqN2gHD56PAQ%40mail.gmail.com.
