User Manual

XScopes
User’s Manual
DS-XScopes-3.5 – December, 2014 Page | 18
2.4 Device Modes
There are multiple device modes that can be selected; the menus shown on figure 32 allow selecting the Scope Mode,
the Meter Mode or the Spectrum Analyzer Mode (FFT). Another device mode is the Protocol Sniffer, which is discussed in
section 3.8.
Figure 32: Device mode menus
2.4.1 Oscilloscope Mode
This is the default mode of the XScope. The 2 analog and 8 digital channels are sampled simultaneously. Any of these
10 channels can be shown on the display. Figure 33 shows the oscilloscope mode and the various sections of the display
are detailed.
2.4.1.1 Roll Mode
The data on the display is scrolled to the left as new data comes in. This is only available on the Slow Sampling rates.
The Roll mode and Elastic mode cannot be selected simultaneously. The Roll mode disables the triggering.
2.4.1.2 Elastic Traces
This is also called “Display average” on other digital oscilloscopes. It works by averaging the trace data with the new
data. The result is a more stable waveform displayed on the screen. However, using this setting only makes sense when
the scope is properly triggered on a periodic signal. The Elastic trace computes this equation for every point in the trace:

  

In the “Mode Menu”,
press K1 and K3 simultaneously,
to display both the Scope and FFT.
Grid
Scope Settings:
Channel Gain Time Base
Trigger level mark
Green LED: Flashes after
every screen refresh
Red LED: Flashes with USB
or LINK signal activity
The scope can also display
the traces in XY mode, which is
described in section 2.4.1.3
Figure 33: Oscilloscope Mode