R&S SMB Phase Modulation - PhiM
1407.0806.32 4.71 E-2
PhiM Sensitivity
(Source External only)
Displays the input sensitivity of the MOD MOD input in RAD/V. The
display only appears in the case of external modulation.
The modulation depth entered under PhiM Depth is reached with 1
Volt modulation of the input.
Note:
The input voltage should not exceed 1.1 V
s
, otherwise modulation
distortions might occur.
Remote-control command:
SOUR:PM:SENS?
PhiM External Coupling
(Source External only)
Selects the coupling mode (AC or DC) for external feed.
Note:
Coupling for external feed via input MOD EXT is set for all
modulations with external source.
AC
The DC voltage content is separated from the
modulation signal.
Remote-control command:
SOUR:PM:EXT:COUP AC
DC
The modulation signal is not altered.
Remote-control command:
SOUR:PM:EXT:COUP DC
LF Gen Freq - PhiM
(Source Internal)
Sets the frequency of the LF generator.
Remote-control command:
SOUR:LFO:FREQ 1E3
LF Gen Shape - PhiM
(Source Internal)
Selects the shape of the LF generator.
Remote-control command:
SOUR:LFO:SHAP SQU
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