User Manual

Waveform Setup
R&S
®
Scope Rider RTH
40User Manual 1326.1578.02 ─ 08
For FFT analysis, the channel bandwidth also determines the frequency range dis-
played in the spectrum (see "Frequency range" on page 104).
"Full"
At full bandwidth, all frequencies in the specified range are acquired
and displayed. Full bandwidth is used for most applications.
"x MHz, x kHz"
Frequency limit. Frequencies above the selected limit are removed to
reduce noise at different levels. Limited bandwidth is indicated in the
channel label.
Remote command:
CHANnel<m>:BANDwidth on page 254
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 254
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 1 meter has a propagation delay of
typically 5.3 ns.
Remote command:
CHANnel<m>:DESKew on page 255
Technology, Value
Sets the threshold, which is used to obtain the signal state. 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).
The threshold is used by the pattern and state trigger.
If a protocol option is installed, and the channel is used in the bus, the configured
channel threshold is also used in the bus configuration. The values are the same in
"Vertical" menu and bus configuration dialogs.
"Technology"
Select a predefined value for one of the most common technologies,
or select "User" to define an individual threshold.
"Value"
Set an individual threshold value if "Technology" is set to "User".
Remote command:
CHANnel<m>:THReshold:TECHnology on page 255
CHANnel<m>:THReshold:USER on page 256
CHANnel<m>:THReshold:THReshold? on page 256
CHANnel<m>:THReshold:FINDlevel on page 257
Vertical Setup