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PC USB Oscilloscopes

Discussion in 'Electronic Design' started by rickman, Mar 16, 2013.

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  1. rickman

    rickman Guest

    The DIY thread prompted me to look for attached scopes again. I see
    there are a few self contained scopes I hadn't seen before with ATMegas
    or ARM processors. Some are very low end, others not too bad. Prices
    go up quickly with bandwidth.

    The attached units I have found seem to be a few no-name devices of
    varying (perceived) quality and then there are the Hantek units. They
    have a 20 MHz bandwidth unit for under $100 which seems pretty good.
    I'd like more bandwidth, but the price goes up really fast. Anyone have
    a Hantek scope? I get the impression their newer units are designed a
    little better. How good is the software?

    What would others recommend for a 200-300 MHz bandwidth scope? Why do
    the prices go up so fast? I am seeing prices in the $1000 range for
    just two channels. Oh yeah, I also want 16 bits of logic analyzer
    attached, preferably synchronized with the scope.
  2. Tim Williams

    Tim Williams Guest

    I recently got a 4 channel 350MHz for $400 including shipping. I don't do
    much digital so a logic analyzer doesn't matter to me.

    Hmm, come to think of it, you pay a premium for analog, too. Tek 485s and
    2465s are still up there. 'Course, you quickly pay a premium for digitals
    with extra functionality, too.

  3. rickman

    rickman Guest

    Hmmm, my original post was below your tag line so it auto trimmed... I
    like that...

    What 4 channel scope, a Hantek? Which model? I'm thinking this was
    another brand as I don't see a Hantek with 350 MHz bandwidth. I would
    be interested in a PC attached scope at that price. Or is this a stand
    alone unit? Still, for 350 MHz, 4 channel that is a good price I think.
  4. rickman

    rickman Guest

    BTW, I am using a *really* old T-935 I bought when I was in grad school
    almost 40 years ago. I think I paid $900 for it and I see they are
    still fetching $400-$500. Amazing!
  5. Jamie

    Jamie Guest

    Because it's like software, you pay for the rights to use it, You don't
    own it.
    Scopes are like that, you're paying for the luxury of having it, it's
    like paying for your freedom.

    Scopes like that drop in price very quickly when one comes out at a
    much lower price of equal performance, and even if they drop the price
    to equal the competitors, they'll still be making money..

    Bet that makes you feel good about free marketing! :)

  6. rickman

    rickman Guest

    Yeah, the Pico scopes are clearly out of my price range for the moment.
    Their product line is hard to understand too, like the big boys, the
    talk about "series" scopes before they tell you what they can do. So
    you have to click through to half a dozen pages to see what they offer
    and if you want to compare across product lines you need to go back and
    forth, back and forth. I think they used to put the prices on a
    separate page, so at least that is better now, or I might be thinking of
    another company.
  7. Bill Sloman

    Bill Sloman Guest

    I bought one last year and it works fine - we'd bought a slower unit
    when I worked at Haffmans back around 2000, and it had also worked
    fine and been easy to set up and use.
  8. Tim Williams

    Tim Williams Guest

    Oh there ya go, even better deal:

    Tempted to buy it myself, but then, I don't know that I'd sell it at a
    profit, and I don't have a need for it either!

    At a glance I see T-935s for ca. $200? Still rather a lot for a mere 35MHz.
    Isn't that one of their "logging" scopes? Living in a town like "Beaverton"
    must do weird things to a company's marketing department.

  9. I've got a Picotech 12bit scope. 10 years ago the SW was buggy but now it seems pretty stable. I have a 10k USD scope at work (Tek 5000 series), but that scope has a lot of bugs and even HW issues.

    Sometimes I find myself reverting back to the USB scope. It even has serial decode, which I would have to pay 1000 USD to get for the Tek scope.

    For reports, the USB scope has an advantage, very fast copy and paste from the capture to the word document.


  10. rickman

    rickman Guest

    Logging? You must mean in the cutting down trees sense. It was a field
    service scope with a handle built into the case. I really like the
    shape with the tube above the controls and inputs, uses minimal desk
    space... other than the fact that it is two foot long! lol I generally
    stand it on its tail and use is next to my chair. But a nice PC scope
    would be sweet!
  11. rickman

    rickman Guest

    That looks like a good deal. I just don't want a big bench scope. But
    I may have to go for it. I'm not likely to find anything portable with
    this quality at this price.
  12. josephkk

    josephkk Guest

    They certainly have some interesting stuff. Most of it is out of the
    price ceiling for me as well. But tabbed browsers take most of the
    flipping down to a mild level.

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