I am using two single-ended probes to monitor a differential signal. Then I use the Ch1 - Ch2 maths function to display the differential signal. How do I set up the Mask Test to use this Maths as its source?
(So far, the only options I've found are to use the actual analogue channels as sources)
(Note: I have the DSOXT3APPBNDL installed)
No.
You need to use a differential probe suitable for the scope and for the signal of interest.
www.Keysight.com/find/probes
InfiniiVision Probes Selection Guide
http://literature.cdn.keysight.com/litweb/pdf/5968-8153EN.pdf
Choosing the Best Passive and Active Oscilloscope Probes for Your Tasks
http://literature.cdn.keysight.com/litweb/pdf/5990-8576EN.pdf
Performance Comparison of Differential and Single-Ended Active Voltage Probes AN 1419-03
http://literature.cdn.keysight.com/litweb/pdf/5988-8006EN.pdf