I'll try that out as soon as I can. But first I hope that my investigation and questions do not sound harsh or someone is under the impression that I blame my instrument... If so - not intended.
I think these are always interesting and welcome, and then you can explain or find a more specific principle of operation of the device, which is usually always a good thing to understand when applying the device to study signal phenomena, for example. The only way to successfully test and explore more demanding things is to know the features of the device and the details of how it works.
But also it is good if result is that there pops up some new unknown bug. Only known bug can fix.
It is extremely unfortunate that the time is over when the manufacturers produced manuals that dealt with the functions of the device in great detail and with quite in-depth explanations down to the last detail, including the basics of the theory. In the old days, both HP and Tektronix, among others, produced such massive manuals and reference guides for many of their devices.
Those times are over. This is unfortunate, especially as equipment has become increasingly versatile and often more complex in its operation. Now, users often have to try and find out how this might work. Sometimes it can lead to long iterative experiments.