JDviewer can't set X and Y scale
Knowledge Base - How To
JD Viewer locks up when trying to set X and Y scale in 1.3 JDviewer.
1. Select Settings -> Default Trace Setting
2. Change Plot Scaling Manual to Auto.
3. After then, load your trace data. Then you can change it’s Y scale normally. Before --- Plot Scaling : Manual After --- Plot Scaling : Auto