User manual

56
UNI-T
®
UT4000 User Manual
Figure 3-5 Signal noise suppressed
d You can also lower waveform brightness to reduce display noise.
Caution : In the average acquisition mode the waveform display will update at a
slower rate. This is normal.
Illustration 5 : Using cursors for measurement
Your oscilloscope can measure 27 waveform parameters automatically. All auto
parameters can be measured with the cursors. By using cursors, you can quickly measure
the time and voltage of a waveform.
Measuring the frequency of Sinc first peak
To measure the Sinc frequency of the signal rising edge, follow the steps below :
1. Press [CURSOR] to display the cursor measurement menu.
2. Press [F1] to activate the cursor measurement function.
3. Press [F1] again to set cursor type to time.
4. Press [F3] to set the vertical cursor unit to Hz.
5. Turn the multi-function control knob to set cursor 1 at the Sinc first peak.
6. Press [SELECT] to select cursor 2, then turn the multifunction control knob again to
set cursor 2 at the Sinc second peak.
See the figure below.
Note : When using the cursor to measure voltage, follow step 3 only and set the
cursor type to voltage.