data transmission through fm transmiter

Discussion in 'Embedded Systems and Microcontrollers' started by pardeepk3264, Sep 28, 2007.

  1. pardeepk3264

    Thread Starter New Member

    Aug 13, 2007
    6
    0
    hello sir;
    we can transfer data through FM transmiter and receiver?
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,138
    1,786
    I think so. I know there are people who have done it. What does a google search turn up?
     
  3. gmrkiran

    New Member

    Sep 11, 2007
    8
    0
    can i have technical details of vhf and uhf transmission
     
  4. gmrkiran

    New Member

    Sep 11, 2007
    8
    0
    can i have basic information of uhf and vhf sir
     
  5. HarveyH42

    Active Member

    Jul 22, 2007
    425
    5
    I think it's 'Packet Radio', but that was in the BBS days, before internet was public, and 9600 baud modems were fastest you could get...
     
  6. Papabravo

    Expert

    Feb 24, 2006
    10,138
    1,786
    Designing and building VHF and UHF circuits has always been and still is a challenging undertaking. The main problems are building stable signal sources that don't drift with time, temperature, and the approach of your fingers. Getting any appreciable power gets increasingly difficult as you increase the frequency. Then as you increase the frequency the propagation distance goes down. So you revert to directional antennas to try and concentrate your signal power. Then the beam gets narrow and you need to aim your antennas with a rifle scope. Then along comes some moisture and your expensive RF deck goes silent because the droplets of water vapor disperse your signal.

    Are you sufficiently dissuaded yet from persuing this foolish quest?
     
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