I was looking at the Rigol DS1052 today ($400) and it reloads the buffer files. Basically it stops the acquisitions, changes the T/Div and V/Div to match the file and loads the file. As long as you don’t press the run key, you can scroll through the buffer, change the T/Div and use the measurement functions.
On the Nano ($89); as you well know, if I STOP the acquisitions or use a properly triggered Sing trigger mode, then all functions (except for 3) still work including cursor movement, measurements, trigger position, trigger level, and trigger sensitivity.
- Change of V/Div clears the screen but upon a new RUN the change is in effect.
- Change of T/Div clears the screen but upon a new RUN the change is in effect.
- Change of Probe Att clears the screen but still takes effect, probably for the same reason as V/Div above.
So maybe this function is not that far away from BenF reality.
- As you pointed out, the file viewer would require no changes nor Nano resources. Maybe someone on this forum can provide such an application for cross platform OS, or provide OpenDoc macro or equivalent. Another disadvantage is spontaneity. During my career of troubleshooting complex systems, it is often required to re-examine previous waveforms based upon new waveform findings.
If the buffer was saved to the SD card and then reloadable, you could easily back up to previous waveforms without reconnecting to those test points. You would just take snapshots along the way and review those as required. The REF wave limits you to the screen viewing area and offers none of the flexibility described above.
- I am not quite sure what you mean here. Are you talking about saving/loading the viewing area or the entire buffer?
I just used Excel for the first time, but haven’t figured out the graphing part yet. Thanks for the tip. I noticed 12 columns of repeating data and two columns of varying data. Does Excel cause this duplication or is that data in the file? Maybe you could include the sample time interval for those lazy folks amongst us that don’t want to do the math as described in your Manual.