Maybe I'm being dramatic, but if a car I was test driving stalled I wouldn't buy it. I would love if these are all user error but that doesn't seem to be the case. I've never had our old Tek scopes freeze of me in my hundreds of hours of using them. I am usually using a scope to measure one off events so stability and the ability to analyze them after they are captured is important to me.
1. I had this happen again today. I left the scope on overnight, captured a number of wave forms and hit save 1-2 times and the scope hard froze. I have save programmed to save a PNG. I did not have a flash drive in, but plugged one it about 10 seconds after pressing save (before I realized it had froze).
1.1 I say 1-2 times because I find it somewhat difficult to tell if I've pressed the soft buttons enough to trigger them.
2. +1 for this. Hitting auto did get the roll to operate how I was expecting. I do not understand the normal trigger roll mode. If anyone has documentation on how this works that would be appreciated.
3. My expectation is that I can capture a waveform on CH 1 and CH 2, then add the measurements afterwards. For example RMS on CH1, frequency on CH2. It is annoying that the measurements sometimes seemingly require recapturing the save waveform.
4. I believe that when the cursors are selected the universal button is supposed to operate in the following way: X1 is selected knob moves x1, then press button x2 is selected knob moves x2, press button x1 and x2 both move together, press button again and it goes back to x1. I don't remember exactly what I observed the first time button it was not that. It was something like: press universal knob x2 moves to x1 and turning knob does nothing, press knob and now you can move x2, press knob again and now x1 and x2 move together. This exact description may be wrong, but it was not the correct behavior that I described above.
5. I don't use the math feature that often on our Tek scopes so I didn't realize they also have the same behavior. My expectation was that I could capture CH 1 and CH3 and then add a math channel that multiples CH1 X CH3 and have it immediately display CH1 x CH3. Both the tek and siglent scopes require recapturing the waveform. Why is this? They both already have the waveforms captured?
Thank you for the response.
1. So freezing is somehow connected with USB and saving.. OK, I will try to play with it. If I find something I will report.
I pretty much never use USB for save (so even if there is some problem there I would not stumble upon it) because scope has SMB Server/client, where I mapped my PC disk, and save everything directly to PC at all times. Pretty much only time I use USB is FW updates (and that can be done over network too)
2. Glad that ROLL is ok now for your use.
3. I apologize for teasing a bit. Yes I know, sometimes we are actually doing something and paying attention to what we are working on, and not exactly noticing details of operating instrument... But as Reacher say "..in investigation details matter..", once we notice something is "behaving" (or at least we think it is) than we need to go back and methodically investigate. Otherwise it is just a "something that sometimes maybe does something" and we have nothing to report to manufacturer. Sometimes it is a bug, but sometimes it is just implemented in a way that does not feel natural, and maybe there is better way, that gets revealed when users give feedback what they like and what they don't.
4. I did try again. I do use these scopes all the time, but I verified just to be sure I am not wrong. I captured two signals on CH1 and CH2 with Single. I enabled math and set for CH1xCH2 and it has shown math waveform from previously captured, stopped waveforms.
It did not require recapturing a waveform after adding Math channel.
So it does that. Same as the measurements. That works too. I added measurements on already captured and they all calculated fine.
Now, I am not disputing your finding, but I presume there are other parameters that are in the play here.
As for exact cursor behavior, I would need to sit down and look into that in more detail. Maybe later, no time now.
Best,
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