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Measurement of ghz signals

Discussion in 'Electronic Basics' started by Saul Bernstein, Oct 2, 2008.

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  1. Hello,

    I've got a storage oscilloscope here with a bandwith of 6 GHz. Unfortunately
    only the default probes with 500 MHz bandwidth are included.

    Now I would like to measure signals in the range of 2.5 gigabit per second.
    Thus, I am looking for suitable probes with sufficient high bandwidth. But I
    think bandwidth is not all there is to consider. There is also the question
    whether to use active or passive probes and probably impedance and
    capacitance will also play a mayor role.

    In addition, the signals I would like to measure on the board are routed
    differentially (selfevident at the frequencies!), so that differential probe
    would surely be the suitable choice here. But wouldn't it be possible to
    measure asymmetrically to ground potential, anyway?

    Guys, how do I find the right solution for my task? Unfortunately I'm an
    absolute newbie in measurement technique so pardon me for bothering you. I
    already hit some books but I couldn't find out, anyhow.

    Thanks for support. Saul
  2. Phil Allison

    Phil Allison Guest

    "Saul Bernstein"

    ** Yikes !

    ** You poor, under-privileged sod ...........

    ** Whooooaaaaahh...

    This Q is a looooooong way outside " basic" electronics.

    Try "sci.electronics.designs" instead.

    Bound to be a few gurus there with experience with " state of the art"
    scope probes.

    ...... Phil
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