I have taken a display of data from the fastest setting of my DS2072 (5nS/div) with 2 Channels for 1GSa/s
and saved the waveform, then I manually set the Data Points with Hex File Editor,
I created a spreadsheet of "Idea" sine wave data values, and placed them in the file
I will show you the Data Points and the 'Vector' Display which always goes Through each data point.
Now the 1st two displays show a sine wave made up of 4 points, now each point is 1nsec, therefore 4 x 1 = 4nSec or 250 MHz
Now the 3rd &4th displays show a sine wave made up of 6 points, now each point is 1nsec,therefore 6 x 1 = 6nSec or 166 MHz
Note that with only 6 points, sinewave only 2 points are above center and there are no data points at the peak of the sinewave, giving a smaller peak-peak display. I think a result of only 8 bit resolution.
I would like to test displaying waveform data on a 2nS/div display. I will be sending a PM to DS2202 owner to help and sent me a waveform file "xxx.wfm".
It will be interesting to see if a File saved on DS2202 can be loaded in to a DS2072
If so I will Manually set data for a small number of point on a Fast scan display
Please note there are data points in the file before and after the displayed data points such that affect the display, In these displays I repeated the pattern.
GIVE THANKS to Marmad's RUU software that makes these screen captures very Easy.