Just a few questions:
Did I understand right that the waveform update rate was down to 1000/sec with only one channel enabled at 50 ns/s with full mem depth ? And the screen actually even showed a lower than 1M mem depth? And it went up only when Dave lowered the mem. depth?
How is the update rate with two channels enabled?
Because the 1104x-e has many times of that with full mem depth and two channels enabled in the same group.
Also interesting weteher it is possible to have a zoom in view on the vertical scale without changing the vertical scale, so getting the getting the full height of the signal?
So to ansver my question after watching Daves video again.
With a 10 mHz signal the scope only gets the advertised 27000/sec
display waveform update rate if the mem depth is set at 250 !! points, which seems to be even lower than the 1Megpoints the scope has with all channels active.
When it goes to 650 points mem. depth, the update rate slows down to 1000/s (50ns/d)
As Dave edited in the 1104x-E, with 17000/s I have to add that it is wrong, as the max of it with single chanel active with 14Megpoints is around 107000/20000 dots/vector mode and with even two channels active it never goes below 3000 but mostly it stays above 6000/sec.
With a single channel active it mostly stays above 10000.
So the 1104x-e has at least 10X the
displaywaveform update rate it seems, but if we go down to a few hundred points mem depth it possibly goes much higher, the official max number is 100000 with whatever setting.
So either the Rigol keeps those numbers with more mem. depth, and more channels active, but even than it is still much slower than the advertised value, or if it goes still lower, than that is a bit atrocious.
Edit: OK I see I forgot about Dave turning on everything on the Rigol which bogs it down to about 2500/sec with 1000 points mem. depth. Not tested on max. mem depth it seems.