General Operating Information 2
Keysight U2020 X-Series User’s Guide 57
3
Enable auto level or manually set the trigger level if the channel A global trigger source is selected.
Set the delay time to be applied between the trigger event and all the gate start times. This allows you to time-shift all
the gates by the same amount with one setting change.
4
Select the positive or negative slope type to determine if the trigger event is recognized on the rising or falling edge of a
signal respectively.
5 Set the holdoff time to disable the trigger mechanism after a trigger event occurs.
6
Set the hysteresis to help generate a more stable trigger by preventing triggering unless the RF power level achieves the
trigger level and the additional hysteresis value. It can be applied to both rising and falling edge trigger generation.
Hysteresis is only available for the channel A global trigger source and manual trigger level.
7 Set the input impedance for the external TTL trigger to Low (50 Ω) or High (100 kΩ).
8
Enable the trigger output where a TTL level high is produced at the Trig Out connector when the U2020 X-Series is
triggered.
[a]
9
Enable the 10 MHz timebase.
[1]
10
Enable the video output which provides a DC voltage proportional to the measured input power through an SMB
connector.
[1]
[a] You can only enable either the trigger output or the 10 MHz timebase or the video output at a time.
No. Function
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