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Thread: signal to noise ratio for a mobile communications system

  1. Jan 17th, 2006, 11:38 AM #1
    Rocky_Lad
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    Question signal to noise ratio for a mobile communications system

    given the following information

    Transmitter power - either in Watts or dBW
    Transmitter Antenna Gain - either as a pure number or in dB
    Receiver Antenna Gain - either as a pure number or in dB
    Frequency of operation
    Bandwidth of operation
    Boltzmann’s Constant
    Antenna Noise Temperature
    Receiver Noise Temperature

    how would i go about finding the signal to noise ratio?

    or does anyone know of a better forum for this kind of question?


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  2. Jan 20th, 2006, 02:37 AM #2
    namrekka
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    Re: signal to noise ratio for a mobile communications system

    You need the distance too!
    You can't tell this.
    The receiver has a certain noise level. It must receive a signal greater then that. You calculate the path attenuation. Then you know how much transmitter power was needed.

    Try forums for HAM-radio.
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