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send analog signal on AM

Discussion in 'Electronic Basics' started by yehonatan, Sep 3, 2003.

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  1. yehonatan

    yehonatan Guest

    hello,
    It is passable to send a signal on AM modulation in 2.4Ghz frequency carrier.
    if YES what are the problem that can be occur?

    thanks
     
  2. Jim Large

    Jim Large Guest

    Sounds like that could be a homework problem.

    Think about this: Is there anything else besides the
    signal that could influence the amplitude of the
    carrier wave in the receiving circuit?

    -- Jim L.
     
  3. yehonatan

    yehonatan Guest

    dir jim,
    I know there is noise that can influance, but the same noise is in the
    low frequency. so i don't understand the different of the noise in
    these two range.
    maybe the problem is in the inplementation of the circuit(RC value)?
    thank for answer
    yehonatan
     
  4. Steve

    Steve Guest

    Same problems that can occur at ANY frequencey, just that they might
    be more pronounced or more difficult to fix. 2.4Ghz wont propogate as
    far as 1Mhz at the same power, for example.
    Unquestionably more expensive/difficult to do @ higher freq. but not
    impossible.
    Perhaps less to do with the difference in the noise, and more to do
    with the difference in the C/N ratio...
     
  5. Tom Burke

    Tom Burke Guest

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    In and of itself, there is nothing wrong with doing AM at that (or
    any) frequency. You'll find, though, that this is what is known as a
    "junk" band. I't the frequency that microwave ovens work at, so
    there all sorts of noise from those things in that band. Also, this
    is the resonant frequency of water (thus microwave ovens), so signal
    attenuation is quite high.


    thanks

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