I have a THS720 portable scope that exhibits a systematic offset error in ch 1 only
This was an issue on A and P-models prior to F/W 1.16.Just to clarify a couple of things about what I said this morning ....
F/W should be 1.15 not 1.16.
The update history says this about 1.15:
A calibration quanitity (signalCplgBalanceDelta), computed only in factory cal, was found to drift
over time. The symptom of this problem is a vertical offset in one or both channels. The fix was
to move the computation of this quantity to SPC. The offset can be removed then by running SPC
(bug report: IRSdb02709)
This implies that the problem could be fixed by doing a Factory Cal, at least until it drifted
Again, this applies to A and P models only.