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Tuning circuit in mobile handset system

  1. Apr 14, 2015 #1
    Studying about Communication Skills specifically about mobile handset and how do they transmit and receive signals etc. I came across this question which states
    "Why does a mobile phone handset have a tuning circuit for reception stage but not for transmission?



    The attempt at a solution
    I was thinking during the transmission stage you will be dealing with one particular type of carrier frequency, however when its time for receiving the signal since the aerial produces plenty of signals each time then a tuning circuit is needed to pick up the signal required. I wonder if what I stated is correct , please correct me if Im not.
     
  2. jcsd
  3. Apr 14, 2015 #2

    berkeman

    User Avatar

    Staff: Mentor

    Welcome to the PF.

    I think your answer is reasonable, but it would be good to know more about the context of the question. Depending on the modulation scheme used, a PLL may be used in transmission (for example in a frequency synthesizer circuit) as well as in reception.
     
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