A single satellite signal.

Discussion in 'General GPS Discussion' started by israel, Jan 9, 2018.

  1. israel

    israel

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    Hello.

    Is there a way to receive a signal from a specific one GPS satellite and display it on an oscilloscope? what is the duration in nanoseconds of a typical signal?

    Thanks.
     
    israel, Jan 9, 2018
    #1
  2. israel

    Nuvi-Nebie Moderator

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    I think the short answer is no.

    The L1 GPS carrier wave is at a frequency of 1.57542GHz, the C/A (Coarse Acquisition) code is modulated onto this carrier, It repeats every 1023 bits and modulates at a 1MHz rate, however all satelllites transmit their sentences on the same carrier frequency using a unique Pseudo Random Noise code, this is called Code Division Multiplexing, it effectively means that the data from all 24 GPS satellites are are superimposed onto one another
     
    Nuvi-Nebie, Jan 9, 2018
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  3. israel

    israel

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    Thanks. Is there any way to display all those signals on a scope? How long (nanos) is each signal?
     
    israel, Jan 9, 2018
    #3
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