RF Level R&S SMB
1407.0806.32 4.34 E-2
Limit - RF Level
Sets the level limit.
The value specifies the upper limit of the level at the RF output
connector. A message appears if an attempt is made to set a level
above this limit and the level at the RF output is confined to the upper
limit. However, the level indication is not influenced.
Remote-control command:
SOUR:POW:LIM:AMPL 30 dBm
Level Offset - RF Level
Sets the level offset relative to the RF level.
The level offset of a downstream instrument (e.g. an attenuator or
amplifier) is entered.
The entry does not change the RF level at the RF output. It only
changes the RF level displayed in the display header. the RF level in
the header corresponds to the level at the output of the downstream
instrument.
Remote-control command:
SOUR:POW:LEV:IMM:OFFS 0
The attenuator mode is set in the Attenuator Settings section.
Attenuator Mode - RF Level
Sets the attenuator mode at the RF output.
Auto
Standard mode. The attenuator is switched
automatically. The level settings are made in the full
range.
Remote-control command:
OUTP:AMOD AUTO
Fixed
The level settings are made without switching the
attenuator. When this operating mode is switched
on, the attenuator is fixed in its current position and
the resulting variation range is defined. The range is
displayed under Attenuator Fixed Range.
If automatic level control is activated (ALC State =
On), the level settings are made without interruption.
If the normal variation range is overranged or
underranged, level errors increase considerably and
the warning Level under/overrange appears in the
info line. The spectral purity of the output signal
decreases with high attenuation.
Remote-control command:
OUTP:AMOD FIX
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