Anritsu Field Master MS2070A Measurement Manual page 73

Spectrum Analyzer Measurements 3-11 Setting Up Triggering
Positive Edge
Trigger
High Threshold
Hysteresis Level
Not Triggered
Low Threshold
Negative Edge
Trigger
Figure 3-42. Trigger Levels and Hysteresis
Spectrum Analyzer MG PN: 10580-00447 Rev. E 3-55