Extended Window; Independent Time Base - UNI-T UPO2000E Series User Manual

3.3 Extended Window

The extended window can be used to magnify a waveform horizontally to view the waveform details.
Press the HORI MENU button on the horizontal control area, then press the type key can turn on the extended window.
Or simply press the SCALE knob to directly enter the extended window, the screen will be divided into two display areas,
as shown below:
Extended
time base
Main time
base
Waveform before magnification:
The upper part of the screen displays the original waveform, which can be moved left and right through rotating the
horizontal POSITION knob, or zoom in and out the selected area by rotating the horizontal SCALE knob.
Waveform before magnification:
The lower part of the screen displays the horizontally extended waveform, and the extended window enhances the
resolution relative to the main time base.
Note: The extended window function is only available when the horizontal time base is between 20ms/div~5us/div.

3.4 Independent Time Base

In independent time base, CH1~CH4 can be set as different time base scales so that signals of different frequencies can
be observed by multiple channels. Press HORI MENU →Time base setting to enter the independent time base
As shown below, CH1 is a 10Hz sine wave, CH2 is a 1kHz square wave, CH3 10kHz triangular wave, CH4 100kHz pulse
wave, so signals with great frequency difference can be observed simultaneously by independent time base. Press the
CH1 button to activate CH1, then user can change the CH1 time base scale by adjusting the horizontal SCALE knob, and
adjustment method for other channels are similar to this.
Waveform before magnification
Waveform after magnification
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