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Testing the presence of DSL signal with an oscilloscope

Discussion in 'Electronic Basics' started by AC/DCdude17, Jul 26, 2003.

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  1. AC/DCdude17

    AC/DCdude17 Guest

    Can you test for the presence of DSL signal on your phone line with an
    ordinary 100MHz scope? If so what do I look for?

    Thanks
     
  2. John Larkin

    John Larkin Guest

    A big, raunchy looking signal that's clearly not audio.

    John
     
  3. Adam Russell

    Adam Russell Guest

    I think you could rig up some kind of inductive probe.
     
  4. Hank Karl

    Hank Karl Guest

    Just use a two channel scope, put one probe on "tip" and the other on
    "ring", and sum them together (or subtract one from the other-I forget
    which because its been a while since I've done this kind of stuff.)
     
  5. Guest

    Subtract, or flip its phase, if 'ordinary' scopes have dual inputs
    these days.

    Billy Y..
     
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