Understanding Oscilloscope Functions
Amplitude Cursors.
Amplitude cursors appear as horizontal lines on the display
and measure the vertical parameters. Amplitudes are referenced to the reference
level. For the FFT function, these cursors measure magnitude.
Time Cursors.
Time cursors appear as vertical lines on the display and measure
both horizontal and vertical parameters. Times are referenced to the trigger point.
For the FFT function, these cursors measure frequency.
Time cursors also include a readout of the waveform amplitude at the point the
waveform crosses the cursor.
Automatic
The Measure Menu can take up to six automatic measurements. When you
take automatic measurements, the oscilloscope does all the calculating for you.
Because the measurements use the waveform record points, they are more
accurate than the graticule or cursor measurements.
Automatic measurements use readouts to show measurement results. These
readouts are updated periodically as the oscilloscope acquires new data.
For measurement descriptions, refer to the
Reference
chapter. (See page 86,
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