On Tue, 30 Jun 1998, WIL REEDER wrote:

> There is a pic based osc. available from Old Colony Radio Sales ( a
> Velleman kit) for 199.USD it will store a
> waveform for download to PC. Bandwidth is a measly >1m but lots of features
> true rms etc. & it is portable.
> I am really happy with mine---but it is limited. Good on you for your work;
> I'm sure yours will be great!! Old
> Colony is on the www try a search.
> wil reeder
> vancouver; canada
>

Hi Wil,

I looked around on the web at several other cheap DSOs before starting my
project. Most were pretty bandwidth limited,as you point out. My
prototype is designed to handle 8bits at 40MS/s with an input BW of
100MHz min. (of course, this violates Nyquist, but eventually I may use
repetitive resampling techniques and I want to be able to handle higher BW).
i also hope to move to 12bits later on.

Sean

 > ----------
> > From: Sean Breheny <shb7@CORNELL.EDU>
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: PIC Digital Storage Scope
> > Date: Tuesday, June 30, 1998 3:01 PM
> >
> > Hello fellow piclisters:
> >
> > A while back I posted several messages about trying to build a PIC-Based
> > digital storage oscilloscope. Well, I'm not finished, but I have made
> > some progress. A short description, some pictures, and a block diagram of
> > the current status of the project can be found at:
> >
> > http://www.people.cornell.edu/pages/shb7/posc.html
> >
> > I will post again to the list when I have the project advanced enough to
> > publish a schematic for others to try building similar devices.
> >
> > Sean
>