Chapter 4 Vertical System
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Figure 4-10 GND Coupling
Note: This setting is only valid for the current channel. To switch from the current channel, just tap the channel icon, channel
indicator icon or horizontal position pointed by the channel indicator icon for direct switching. You do not need to exit the
menu.
4.4.2 Set Bandwidth Limit
Open the channel menu, find the “Bandwidth” selection box in the channel menu, set bandwidth limit, high-pass
filtering and low-pass filtering as needed.
Full Bandwidth:
Allows signals of all frequencies to pass.
20M Bandwidth:
Only signals with frequencies below 20MHz are allowed to pass, and signals above 20MHz
are effectively attenuated.
High Pass:
Only signals above the lower limit of the currently set frequency are allowed to pass.
Select high pass, tap the frequency box
, open the frequency setting interface, tap “MHz” and
“KHz” to select the frequency scale, drag or tap the slide bar for coarse adjustment of the maximum frequency
allowed to pass, tap “+”, “-” buttons to precisely adjust the frequency.
Low pass: Only signals below the currently set frequency upper limit are allowed to pass. (with the settings same
as High Pass)
High-pass filtering and low-pass filtering can be set within the frequency range of 30kHz-100MHz.
The difference in bandwidth limitation can be visualized by the waveform. The full bandwidth is shown in Figure
4-11, the 20M bandwidth is shown in Figure 4-12, the high pass is shown in Figure 4-13, and the low pass is
shown in Figure 4-14.
