User`s guide

170 53220A/53230A User’s Guide
5 Triggering and Gating
Time Interval Measurements
For time interval measurements, the command used to set/change the gate
source is:
[SENSe:]TINTerval:GATE:SOURce {IMMediate|EXTernal|
ADVanced}
[SENSe:]TINTerval:GATE:SOURce? (query form)
- gate source IMMediate uses an internal gate signal which starts the mea-
surement on the first event (edge/level) defined by the INPut subsystem, and
ends on the next (stop) event defined. The CONFigure commands set the time
interval gate source to IMMediate.
- gate source EXTernal is the counter’s rear panel ‘Gate In/Out’ BNC. Using
an external gate, the measurement begins on the first start event after the
external gate is received. The measurement ends following the stop event. The
start and stop events (edge/level) are defined by the INPut subsystem.
NOTE
OUTput:STATe OFF must be set when using gate source EXTernal. See
“Enabling Gate Signals on the ‘Gate In/Out BNC” for more information and for
information on using gate signals to synchronize other instruments.