1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Electromagnetic Interference in Cell Phones

  1. Dec 19, 2014 #1
    Consider two adjacent people speaking in cell phones. Why the signals don't interfere with one another? Does each phone communicate with a distinct frequency? If so, how?
  2. jcsd
  3. Dec 19, 2014 #2


    Staff: Mentor

    This is an example of spread spectrum technology in particular CDMA (Code Division Mulitiple Access)



    From the above wikipedia articl is the analogy quoted below:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook