Rohde & Schwarz SMW200A - Understanding the Displayed Measurement Results

Monitoring Signal Characteristics
R&S
®
SMW200A
593User Manual 1175.6632.02 ─ 16
8.2.2.4 Understanding the Displayed Measurement Results
The following rules apply by the calculation and display of the measurement results:
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The displayed power values refer to the selected Output
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As a reference value serves the 0dBFs level.
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The results are displayed in the current units of the corresponding Output
For example, if an R&S SGT is connected to one of the DIG I/Q OUT interfaces,
the results are displayed in dBm; the instrument name is also indicated.
Example: Results calculation and interpretation at the analog I/Q OUT
Enable the following settings in the "I/Q Analog > Analog I/Q Output Settings" dialog:
In the "Setup > General > Baseband Powers Simulation" dialog, enable a power mea-
surement with the following properties:
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"Source > Baseband A"
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"Output > I/Q Out 1"
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"Acquisition > Nominal"
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"I/Q level Vp (EMF) = 1.2 V"
A full scale value before the IQ modulation corresponds to 1.2 V. A -6 dBFS value for
RMS or peak would then correspond to 0.6 V.
Querying Information on the Baseband Power Levels