Re: Are low/lower cost USB Oscilloscope's any good?

Joerg <notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx> wrote:

Hal Murray wrote:

I've been impressed with these guys: http://www.cleverscope.com/ -- they seem
to have a solid understanding of what terms like "noise" and "jitter" mean,
unlike many of the cheap scopes out there.


A friend has one. He's very happy with it.

One of the advantages of a PC based scope is that it doesn't take
up much room on your desktop.


But why are they so slow? At least the ones I have seen were. We
designed 400MSPS converter boards even back in the late 80's and early
90's. It ain't rocket science.

The problem is what to do with the data. Sampling and storing data in
some memory is the easy part. Gettting it from the memory onto a
screen in a meaningfull way is not so easy. I'm working on one and
everything is about ready except for the sampling itself.

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