[quote=“VEL255”][quote]In x1 setting the wave is ‘over sharp’, that is, it’s the other extreme [/quote]This is very strange too.
Ok, now I would appreciate it if you might suggest my next course of action. Does the information I have conveyed suggest I have a faulty Scope? Should I exchange it? What would you suggest or does it appear not to be a serious problem?
[quote=“VEL255”]To isolate the problem either to the probe or to the scope would you please take following waveform images.
Select x1 probe setting.
Select 1 V/Div and 0.1 ms/Div ranges.
In the generator select 1kHz square wave, 3Vpp.
Take images from both channels with this setting.
Change to 0.3V/div range.
Set the generator: 1 Vpp
Take again images from both channels.[/quote]
Here ya go … the parameter = image name
Well, it looks as if there is a slight issue with scaling but not too severe. I don’t call it too bad. This will not impact my use of the scope, but you can see that the x1 traces are “over sharp” on the 1V/Div scale both channels.
Also, the 1V/Div is under amplified, ch1_3Vpp shows best symmetry ch2_3Vpp is offset. 0.3V/Div is over amplified & just a little offset (both channels). It’s confusing. I think that’s right.
Now it seems the probe is the problem. The compensation adjustment range is not large enough. This is strange. I try to find out the cause to this…
[quote]Also, the 1V/Div is under amplified, ch1_3Vpp shows best symmetry ch2_3Vpp is offset. 0.3V/Div is over amplified & just a little offset (both channels). It’s confusing. I think that’s right.[/quote]To minimize the offset you may do a calibration after the scope has been on for a while (e.g. 1 hour). Select Options -> Calibrate. The calibration values are saved and there is no need to repeat the calibration in the next session.