Hi RF-LOOP,
Can you repeat these tests with a time base setting of 10 or 100nS/div ?
Here 100ns/div
8bit
first normal run - still image (it need note that because it is still image, live visual effect is different - more or less.)
then single shot
after then this single shot zoomed vertically 10x using V/div
after then zoomed also horizontally 10x using t/div
12bit
normal run
single shot
then this single shot zoomed vertically 10x using V/div
after then zoomed also horizontally 10x using t/div
Then 10ns/div
8bit
normal run
single shot
then this single shot zoomed vertically 10x using V/div
after then zoomed also horizontally 5x using t/div (min is 2ns/div)
12bit
normal run
single shot
then this single shot zoomed vertically 10x using V/div
after then zoomed also horizontally 5x using t/div
Signal, levels etc selected so that fixed Sin(x)/x affect as little as possible. This can not turn off.
In these images this can see clearly in images fx and fy. (note this effect can not see in run mode)
I hope Owon develop FW so that user can turn Sinc on and off when ever he want, also in stop mode and also so that scope then show only true sample datapoints and then also line (vector) mode where just only these true sampled points are connected usin straight line. Now user is out from reality.
Also when do Sinc, it must never draw trace what do not go through true real raw sampled datapoints as some toys may do.
It looks like Owon follow this rule number 1 but it is difficult to confirm because it do not show what are real true raw datapoints from ADC.. Also in some situations vector and or real dot mode is useful. Owon dot mode is not pure real. Scope FW add some intermadiate points betwwen real points but it do not mark real points example highlighting them.. )
With some cheap 8 bit scopes it is (perhaps) difficult to get visible quite clean 8bit ADC staircase...