Bluetooth

Discussion in 'Computing and Networks' started by Webby, Oct 26, 2008.

  1. Webby

    Thread Starter Active Member

    Jun 15, 2008
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    0
    Hi, is it possible to capture a bluetooth signal pattern with an oscilloscope?
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Could you expand on what you mena by "signal pattern"? Bluetooth runs above 2 GHz, so it will take a very expensive o'scope to display the transmitted signal. Tek made the 7400 series back in the '70s with a gigahertz time base, so it's likely you can get something if you have the money.

    If you read up on the protocol, you will know what to expect to find in the signal.
     
  3. Webby

    Thread Starter Active Member

    Jun 15, 2008
    66
    0
    Hi, all I mean the pattern seen on the oscilloscope.
     
  4. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
    1
    I don't think so. Bluetooth runs at 2.4GHz with frequency hopping spread spectrum.. In order to get a good picture, your oscilloscope bandwidth would need to be about 24GHz!

    You should be using a spectrum analyzer with sufficient bandwidth. You should be able to determine basic functionality with this. You would need a reciever and some software to check BER.

    Steve
     
  5. scubasteve_911

    Senior Member

    Dec 27, 2007
    1,202
    1
    I guess I am wrong, there are oscilloscopes that can apparently measure that high, but obviously are expensive!

    Steve
     
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