Digital Voltmeter and Counter 17
Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide 293
• Press the Source softkey and turn the Entry knob to change the analog channel
on which counter measurements are made.
• Press the Event Slope softkey to choose whether positive or negative edge
events are counted.
• Press the Gate softkey to enable or disable gating of the edge event count using
a positive or negative level on a second analog channel.
When gating is enabled:
a Press the Gate Source softkey and turn the Entry knob to select the analog
channel that will supply the gating signal.
The selected channel does not have to be on (displaying a waveform).
b Press the polarity softkey to choose whether positive or negative levels are
used to gate the edge event count.
The trigger level for the selected analog channel is used to determine the
polarity of the signal.
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