I buy this DSO to measure small things (car electronic, signal emitter, analog sensors / potentiometer, etc.). I cannot use alternative fw (Bootloader 3.26D), so I have to use the original 4.21. I read the manual (it’s not very detailed), but I need held to use it:
Neigher Yn FitRange nor Xn FitBase works for me. I tested different Signals from signal generators (sine, square, DC with differnt voltages amptitudes). Very bad: There is nothing, what displays “out of range” (for Y-Voltage), so I don’t even know if there is a signal and have to adjust Voltage/Div.
Single-Shot triggering don’t work! There is no signal (probe is not connected). I switch to SINGL at Trigger (threshold is high enouth, so no noise/radio signal could trigger). Then I connect the probe to a signal, but nothing happens! If a signal ist already triggering at NORM oder NONE and I switch to “SINGL”, caputering is stoped at the end of the current buffer. I coudn’t find a way to reset the buffer for a new singleshot. At Play-Pause-Key nothing happens
At low TimeBase measurings (1Sec/Div), it takes a lot of time, until the buffer is filled (even if I set up SampleDepth to 1K). But there seem to be no way to scroll Display automaticly to the live point? At all, scrolling with Xn ViewPosition is really bad implemented.
What Sampling-Rate is used at what Timebase? I hope always the full 1MSamples/sek and an average value is displayed? Or is there a hidden menu to select it? I also would need peek-values at 1MS/s and low timebase (1sec/div), to detect spike-pulses. If not possible, Singleshot-Triggering at higher TimeBase would also be a solution. But singleshot also doesn’t seem to work (as I mentioned above)
Where is the Ground-Line? There are a couple off lines I can hide or unhide (two X, two Y, Trigger treshold, Trigger point), but no ground-line? If I move Y Offset, two small, blinking cyanblue arrows appears left and right. But If I switch another function they sometimes disappears. I tested again: They are blinking. If I switch away at the moment, thet are blanked, they disappear forever. If I switch away, when they are not blanked, they stay.
Maybe I’m stupid and need a better manual to use this DSO?
Thanks in advance and excuse my bad english,
I also tried out FW Ver4.22, but nothing changed. This DSO is totally useless for me!