Waveform setup
R&S
®
RTB2000
62
User Manual 1333.1611.02 ─ 11
Deskew compensates delay differences between channels caused by the different
length of cables, probes, and other sources. Correct deskew values are important for
accurate triggering. Signals that are routed over lines with different lengths have a dif-
ferent propagation delay. This delay can lead to a non-synchronous waveform display.
For example, a coax cable with a length of 1 meter has a propagation delay of typically
5.3 ns.
Remote command:
Zero Adjust
Differences in DUT and oscilloscope ground levels can cause larger zero errors, which
affect the waveform. If the DUT is ground-referenced, the "Zero Adjust" corrects the
zero error and sets the probe to the zero level.
You can assess the zero error by measuring the mean value of a signal that returns
zero.
Remote command:
Waveform Color
Selects the color scale for the waveform color. Each scale comprises a set of colors,
where each color represents a certain frequency of occurrence.
"Temperature"
Display in temperature colors. Blue corresponds to rare occurrences
of the samples, while white indicates frequent ones.
"Rainbow"
Display in rainbow colors. Blue corresponds to rare occurrences of
the samples, while red indicates frequent ones.
"Fire"
Display in fire colors. Yellow corresponds to rare occurrences of the
samples, while red indicates frequent ones.
"Default"
Displays the waveform in its default monochrome color.
Remote command:
Probe
See
Chapter 4.4.2, "Probe settings"
Threshold
See
Chapter 4.3.4, "Threshold settings"
Label
See
Chapter 4.3.5, "Label settings"
4.3.4
Threshold settings
A threshold is used for digitization of analog signals. If the signal value is higher than
the threshold, the signal state is high (1 or true for the Boolean logic). Otherwise, the
signal state is considered low (0 or false) if the signal value is below the threshold.
Access: [Ch <n>] > "Threshold" (scroll down).
Vertical setup
