Cursors; Automatic - Tektronix TPS2000 Series User Manual

Cursors

This method allows you to take measurements by moving the
cursors, which always appear in pairs, and reading their numeric
values from the display readouts. There are two types of cursors:
Amplitude and Time.
When you use cursors, be sure to set the Source to the waveform on
the display that you want to measure.
To use cursors, push the CURSOR button.
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 Math 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 Math 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 five 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 page 9- - 25 in the Reference
chapter.
TPS2000 Series Digital Oscilloscope User Manual
Understanding Oscilloscope Functions
3- 15