Agilent Technologies DSO-X 4022A, User Manual

Page: 257 / 488

Measurements
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Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide 257
Counter
The InfiniiVision 4000 X- Series oscilloscopes have an integrated hardware
frequency counter which counts the number of cycles that occur within a
period of time (known as the gate time) to measure the frequency of a
signal.
The gate time for the Counter measurement is automatically adjusted to
be 100 ms or twice the current time window, whichever is longer, up to 1
second.
The Counter can measure frequencies up to the bandwidth of the
oscilloscope. The minimum frequency supported is 1/(2 X gate time).
Figure 48 Isolating an event for Frequency measurement