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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.

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