AM bandwidth

Discussion in 'Wireless & RF Design' started by cpleng7, Sep 28, 2009.

  1. cpleng7

    Thread Starter Active Member

    Dec 18, 2008
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    AM bandwidth also one of the disadvantage of the AM circuit.
    what AM bandwidth can be make useful to other circuit?
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
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    You question is somewhat unclear.

    Are you asking what other modulation techniques make more efficient use of the available RF spectrum?
     
  3. flat5

    Active Member

    Nov 13, 2008
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    Bandwidth for data? cw? voice? music?
     
  4. RAH1379

    Well-Known Member

    Dec 13, 2005
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    Think of bandwidth as a window that allows only one signal through, the bandwidth should match the width of the signal it passes.
     
  5. t_n_k

    AAC Fanatic!

    Mar 6, 2009
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    What do you mean by "only one signal"?

    I'm guessing (for instance) you would mean you consider an AM transmission on a particular radio station as one signal - which is different to that being transmitted on another radio station.

    I would clarify this somewhat ....

    In reality that (AM) signal can include a range of frequencies - say within a 10kHz spread either side (upper and lower sidebands) of the center carrier frequency for the particular station - depending on the station content modulation signal characteristics.
     
  6. t_n_k

    AAC Fanatic!

    Mar 6, 2009
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    And it's possible to imagine (again - for instance) two AM radio stations transmitting on the same carrier frequency and the two signals arriving at the same receiver - it could end up a mess for the listener. Hence the need to regulate who gets to use a particular part of the RF spectrum and under what conditions they can use it.

    Ever tried using CB when the trouble makers got going?
     
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