User manual

Waveform Setup
R&S
®
Scope Rider RTH
42User Manual 1326.1578.02 ─ 04
Remote command:
CHANnel<m>:BANDwidth on page 163
Invert
Turns the inversion of the signal amplitude on or off. To invert means to reflect the volt-
age values of all signal components against the ground level. Inversion affects only the
display of the signal but not the trigger. For example: if the oscilloscope triggers on the
rising edge, the trigger is not changed by inversion, but the actually rising edge is dis-
played as falling edge.
Remote command:
CHANnel<m>:POLarity on page 162
Probe Setting
Selects the attenuation factor of the connected probe. The vertical scaling and mea-
sured values are multiplied by this factor so that the displayed values are equal to the
actual signal values.
Make sure to set the attenuation factor on the instrument according to the probe being
used. Otherwise, the measurement results do not reflect the actual voltage level, and
you might misjudge the actual risk.
Remote command:
CHANnel<m>:PROBe on page 161
Offset
Sets an offset voltage that is added to correct an offset-affected signal. The value is
included in measurement results. The signal is shifted in relation to the ground level by
the offset value. Negative offset values move the waveform down, positive values
move it up.
Remote command:
CHANnel<m>:OFFSet on page 163
Deskew
Sets a delay for the selected channel.
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. The propagation delay may lead to a non-synchronous waveform
display. For example, a coax cable with a length of one meter has a propagation delay
of typically 5.3 ns.
Remote command:
CHANnel<m>:DESKew on page 164
Threshold
The 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, if the
signal value is below the threshold, the signal state is considered low (0 or false).
"Threshold"
Select a
"User Thresh-
old Value"
Sets an individual threshold value if ... is set to "User".
Vertical Setup