Instrument Function
R&S
®
SMU200A
216Operating Manual 1007.9845.32 ─ 15
Target Level - Power Sensors
Sets the targer RF level.
SCPI command:
n.a.
5.5.7 RF Level/EMF
5.5.7.1 Overview RF Level Settings
Message "Level overrange/underrange"
If this message appears in the status line, the following parameter is in the overrange
(see data sheet):
●
the set level ("Level")
●
the displayed peak envelope power ("PEP") for Digital Modulation or Digital Standard
The correct level setting cannot be guaranteed for the entire frequency range if the set
level is in the overrange/underrange.
The value of the RF level is displayed in the level field ("Lev") in the header of the instru-
ment's display and the simplest way to set the RF level is to set it directly in this field.
The center line ("Level") and, to the left of this, the peak envelope power ("PEP") of the
modulated RF output signal is displayed in the case of digital modulation or digital stand-
ard.
A two-line display appears in the case of two-path instruments. The frequency and level
of Path A are shown in the top line, and the frequency and level of Path B in the bottom
line.
The "Level" display does not consider the power difference between both paths based
on unequal steering matrix, i.e. the displayed power level has to be reduced by a special
MIMO Fading Power Correction value (see "MIMO Fading Power Correction - Digital
Impairments - Measurement" on page 320).
Be aware, that there is a difference between the RF level displayed in the header and
the RF output level set in the "Level/EMF" dialog of the "RF" block.
RF level vs. RF output level
The level entered and displayed in the "Level" field takes the offset of any downstream
attenuators/amplifiers into consideration by way of calculation. This means that with a
RF Signal and Analog Modulations - RF Block
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