R&S RTO6, User Manual

Page: 140 / 2677

Acquisition and waveform setup
R&S
®
RTO6
140 User Manual 1801.6687.02 ─ 05
The offset of a signal is determined and set by the autoset procedure. The current
value is shown in the waveform label, and it is marked by a small triangle in the grid.
If a Rohde & Schwarz differential probe is connected, the offset is the differential offset.
If a Rohde & Schwarz modular probe is connected, the offset of the selected probe
mode is used. For example, in CM mode, the offset is the common mode offset.
By default, the horizontal grid axis remains in the center when the offset is changed. To
shift the axis together with the waveform, disable
Keep Y-grid fixed in ""Settings" >
Appearance > Grid".
Remote command:
CHANnel<m>:OFFSet
on page 1339
Position
Moves the selected signal up or down in the diagram. The visual effect is the same as
for
Offset but the waveform is adjusted later in the signal flow. While the offset sets a
voltage, position is a graphical setting given in divisions.
By default, the horizontal grid axis remains in the center when the offset is changed. To
shift the axis together with the waveform, disable
Keep Y-grid fixed in ""Settings" >
Appearance > Grid".
Remote command:
CHANnel<m>:POSition
on page 1339
Coupling
Selects the connection of the channel signal. The coupling determines what part of the
signal is used for waveform analysis and triggering.
"DC 50
Ω
" Connection with 50
Ω
termination, passes both DC and AC compo-
nents of the signal.
"DC 1 M
Ω
" Connection with 1 M
Ω
termination, passes both DC and AC compo-
nents of the signal.
"AC" Connection with 1 M
Ω
termination through DC capacitor, removes DC
and very low-frequency components.
If AC coupling is set, the attenuation of passive probes has no effect,
and voltage is applied to the instrument with factor 1:1. Observe the
voltage limits, otherwise you can damage the instrument.
Remote command:
CHANnel<m>:COUPling
on page 1337
Invert channel
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. If the inverted channel is
the trigger source, the instrument triggers on the inverted signal.
Vertical setup