Micro Button; Offset Compensation; Differential Offset - R&S RT-ZD40 Mode D'emploi

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R&S RT-ZD40
Alternatively, AutoZero can be started in the dialog box of the R&S RTO:
► "Vertical" menu > "Probe Setup" > "Ch" tab > "Detect AutoZero"
2.2

Micro Button

The micro button provides easy and quick access to important functions of the
R&S RTO. After a function has been assigned, pressing the micro button
remotely controls this specific function on the base unit. For example, Continuous
Run and AutoZero are commonly assigned to the micro button.
To assign a function to the micro button with the R&S RTO oscilloscope:
► "Vertical" menu > "Probe Setup" > "Ch" tab > "Micro button action"
For more details on the available functions and settings for the micro but-
ton, refer to the "User Manual" of the R&S oscilloscope.
2.3

Offset Compensation

The R&S RT-ZD40 features two offset compensation functions: a differential off-
set compensation and a common mode offset compensation. Each function com-
pensates a particular DC component of the input signal, even in front of the active
amplifier in the probe tip. For a definition of differential and common mode input
voltages, see chapter 4, "Characteristics of Differential
2.3.1

Differential Offset

The differential offset compensation is often referred to as offset compensation.
The differential offset function can compensate a DC voltage applied between the
positive and the negative input socket. This is particularly helpful if a small single-
ended signal with a large DC offset is measured with a differential probe, for
example, with the negative input socket connected to ground. As the R&S RT-
ZD40 measures differential voltages, setting a differential offset compensation is
directly visible on the oscilloscope screen as a voltage offset of the measured
waveform.
User Manual 1410.5363.02 ─ 03
Putting into Operation
Micro Button
Probes", on page 28.
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