Acquisition and waveform setup
R&S
®
RTE
208User Manual 1326.1032.02 ─ 20
"P"
Positive single-ended input voltage (V
p
). The voltage between the
positive input terminal and ground.
"N"
Negative single-ended input voltage (V
N
). The voltage between the
negative input terminal and ground.
Remote command:
PROBe<m>:SETup:PRMode on page 1135
TRPRobe:SETup:PRMode on page 1135
DM Offset, CM Offset, P Offset, N Offset
Compensate offset voltages. Available offsets depend on the selected probe mode.
The offset of the selected probe mode is used as channel offset and considered auto-
matically for correction. For example, in CM mode, the common mode offset is used as
channel offset. See also: "Offset" on page 187.
"DM Offset"
Compensates a DC voltage applied between the positive (V
p
) and the
negative (V
n
) input terminal at the probe tip.
"CM Offset"
Compensates a DC voltage applied to both input terminals refer-
enced to ground. See also: "CM offset" on page 203.
"P Offset"
Compensates a DC voltage applied to the positive input terminal (V
p
)
referenced to ground.
"N Offset"
Compensates a DC voltage applied to the negative input terminal (V
n
)
referenced to ground.
Remote command:
PROBe<m>:SETup:DMOFfset on page 1136
PROBe<m>:SETup:CMOFfset on page 1132
PROBe<m>:SETup:NOFFset on page 1136
PROBe<m>:SETup:POFFset on page 1137
5.5.5.2 Termination voltage with R&S RT-ZMA40 SMA module
Termination voltage is relevant if you use the R&S RT-ZMA40 SMA module. The SMA
module applies a termination voltage (±4 V) to the DUT to enable measurements
against a common mode DC voltage instead of ground. This measurement is required
for many digital signal standards.
The termination voltage can be controlled by the oscilloscope. Therefore, connect the
V
T
terminal of the R&S RT-ZM probe amplifier to the V
T
terminal of the R&S RT-ZMA40
SMA module using the red DC lead (see R&S RT-ZM User Manual). The required ter-
mination voltage is measured and adjusted automatically, but can also be set manually.
Access: "Vertical" menu > "Probe Setup" > "Termination"
Probes
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