There is only one reason to use such a scope, if you'll DIY :

http://www.pdamusician.com/dpscope/features.html

<http://www.pdamusician.com/dpscope/features.html>or with instructables:

http://www.instructables.com/id/DPScope-Build-Your-Own-USBPC-Based-Oscilloscope/


Seb, 8MHz analog russian scope, small, about 2kg, operating manual in
russian including schematic, built in attenuator (even Tektronix does not
have this feature) free, except shipping is still my offer for you.

Vasile

On Sat, Mar 6, 2010 at 5:01 AM, m...@watty <[email protected]> wrote:

> yes, 1Msps may be enough for some application, assume though that
> about 1/5th is upper reliable analogue frequency rate rather than
> nyquist. (/2). So decide highest frequency you need to see and x5 for
> 1 channel sample rate or x10 for two channels.
>
> 8bits if it really is 8 bits and you have good range of ANALOGUE input
> amp/attenuator in front of ADC may be enough. But I find in real world
> of cheap instruments this is not true. 8bits is a  toy. You need 10bit
> ADC...
> that is 9 bits accuracy.,..
> If you using 1/2 the screen or half full scale then you have indeed 8
> bits only on your 10 bit ADC!
>
> My technician at last job had Digital Spectrum Analyser up to 2GHz.
> After a few weeks on the job he would only use the 20 year old fully
> analogue HP141T spectrum analyser and 20 year old Hameg Analogue
> scope. Because what it showed was real!
>
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