Trigger Setup
You can also force the oscilloscope to trigger. To do so, push the front-panel Force Trig button.
Trigg er Holdoff
Adjust h oldoff to obtain stable triggering when
the oscilloscope is triggering on undesired
trigger even ts.
Trigger holdoff can help stabilize triggering,
since the oscilloscope does not recognize
new triggers during the holdoff time. When
the oscilloscope recognizes a trigger event,
it disables the trigger system until acquisition
is comp lete. In addition, the trigger system
remains disabled during the holdoff period tha t
follows each acquisition.
Holdoffs
Trigger Coupling
Trigger coupling determines what part of th e signal is passed to the trigger circuit. Edge triggering can use all available coupling
types: DC, Low Frequency Rejection, High Frequency R ejection, and Noise Rejection. All other trigger types use DC coupling only.
The cutoff frequency for low frequency rejection is 65 kHz. The cutoff frequency for high fre quency rejection is 85 kHz.
DPO2000 and MSO2000 Series Oscilloscopes User Man ual 125