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experience with USB osiclloscopes?

Discussion in 'Electronic Components' started by starfire, Jun 2, 2007.

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  1. starfire

    starfire Guest

    Has anyone bought one of the PicoScope USB-based oscilloscopes? I was
    looking at the model 3206. Is this a good unit? Does the company provide
    everything they claim they will?

    Thanks for any insight....

    Dave
     
  2. Graham W

    Graham W Guest

    Are you sure that 8 bit resolution is going to OK?

    Anyway, there are other models with different specs so any shortcomings
    will be down to the purchaser ordering the wrong model or not
    appreciating the specifications.

    HTH
     
  3. starfire

    starfire Guest

    I couldn't find anything else out there after doing an extensive web search
    with higher bit resolution and still providing a wide enough bandwidth (I
    need at least 200MHz) while still being within reason for cost. 8-bits
    seems to be the norm for high-speed (that's reasonable). The other
    functionality of the package (bullt-in spectrum analysis and function
    generator) of the 3206 makes this a pretty good value for the cost. To be
    sure, there are a lot of 10 and 12-bit resolution PC scopes but their
    bandwidths are usually about 50MHz or less.

    Thanks.
     
  4. Jamie

    Jamie Guest

    Personally, I prefer the non USB types that requires a PC/Laptop to
    operate.
    Most Hand held or desktop Digital's have the option of sending the
    capture data to the PC/
    I bought not to along ago a cheap chinese knock off that works
    very nice for the price..
    20 Mhz dual scope (color), with DMM, separate inputs with isolation
    between all inputs.
    I paid under 500 for it. I think they have also a 60 Mhz version..
    this comes with carry case, real probes, divider block etc..
    It's your choice..
    I did see a post once about a USB scope and the user wasn't happy.
    I can't say if it was the same model how ever, they did complain about
    jitter and lag..
     
  5. Marra

    Marra Guest

    500 sounds expensive.
    I made my own for £20 in components and a couple of hours to write the
    software.
     
  6. Care to sell it? :)
     
  7. Rich Webb

    Rich Webb Guest

    When you're looking at USB scopes be sure that you look also at the
    single-shot sample rate and not only the "equivalent" rate that they
    may give for repetitive events. The single-shot bandwidth for
    reasonable reproduction of the signal is about one tenth of the
    single-shot rate.
     
  8. Jamie

    Jamie Guest

    for 20 Mhz dual trace?
    I'd like to see that.
     
  9. Joel Kolstad

    Joel Kolstad Guest

    If it's anything like your PCB design software, it'd be fair to say that it's
    lacking a lot of functionality that those £500 units provide, yes?

    There are a *lot* of "toy" USB oscilloscopes out there...
     

  10. Hi

    Is there any digital to analog converter that would have a minimum
    sampling rate of 500 khz and that can be directly connect to a Pc computer
    USB input ?

    Thank

    Gaetan
     
  11. Marra

    Marra Guest

    No.

    You would need to buy a USB scope and PC software.

    The alternative is getting into microcontrollers, USB and PC software.
     

  12. Hi

    I found a web site using a Pic but it's seem hard to program it.

    Here's the link;

    http://www.semifluid.com/?p=24

    Gaetan
     
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