Hi Rune,
I did some more testing on the marker issue.
I am using a cal-file with 804 points. The CF=450kHz@10kHz span. If I select one segment it works. Selecting two segments ist doesn't.
Obviously it depends upon span and segment settings.
When I load the cal-file with 101 points, I see the same symptom as above.
Hope that helps!
Kind regards
Norbert, DG1KPN
