User manual

18
UNI-T
®
UT4000 User Manual
Press [F2] then [F3]. All high frequency quantities higher than 20MHz in the signal being
tested will be limited. The waveform display is as follows :
Figure 2-5 Waveform display when bandwidth limit is on
3. Setting up the probe rate
To match the probe attenuation factor setup, it is necessary to set up the probe attenuation
factor in the channel operation menu accordingly. For example, when the probe
attenuation factor is 10:1, set the probe attenuation factor at 10X in the menu. Apply this
principle to other values to ensure the voltage reading is correct.
The figure below shows the setup and vertical range display when the probe is set at 10:1.
Figure 2-6 Setting up the probe attenuation factor in the channel menu
Bandwidth limit 20MHZ
Bandwidth limit icon
Probe attenuation factor
Vertical range movement