5 Triggering and Gating
200 Keysight 53220A/53230A User’s Guide
External gate stop signal threshold
For external sources INPut[1] and INPut2 (Chan 1 and Chan 2 softkeys), a fixed
input threshold voltage must also be specified in addition to the gate signal slope.
This is done using the command:
INPut[{1|2}]:LEVel[{1|2}][:ABSolute]{<volts>|MINimum|
MAXimum|DEFault}
INPut[{1|2}]:LEVel[{1|2}][:ABSolute]?[{MINimum|MAXimum|DEFault}]
(query form)
The specified edge (slope) of the gate signal crossing the threshold stops the gate.
(More information on the INPut subsystem can be found in Chapter 4, "53220A/
53230A Input Signal Conditioning".)
When using external sources INPut[1] and INPut2, the channel selected as the
gate source cannot be the same channel on which the measured signal is applied.
That is, the gate start source channel cannot be involved in the measurement.
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