On Thu, Sep 25, 2014 at 12:19 AM, Sean Breheny wrote: > Have you ever used an analog storage scope? THOSE are weird! > > > Are you so young? Then perhaps you don't know that weird stuff are digita= l scope and not analog one. You know why? because they work based on Nyquist theory, while analog scope don't. If the scope designer miss the correct low pass filter, you can see on a digital scope everything you want except the real signal you have. This is happening most often even with some 15.000$ scopes if you want to see noise. Because noise is really random. Then if you are old enough you go in the basement and take a real analog scope, which yes is measuring correct the noise from your system. best, Vasile --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .