R&S FSW-K7 User Manual page 111

®
R&S FSW-K7
Selected
Time Domain
Zero Phase Reference Position (PM Time Domain
Phase Wrap On/Off (PM Time Domain
Squelch State
Activates the squelch function, i.e. if the signal falls below a defined threshold, the
demodulated data is automatically set to 0. This is useful, for example, to avoid
demodulation noise during transmission breaks.
Remote command:
[SENSe:]ADEMod<n>:SQUelch[:STATe]
Squelch Level
Defines the level threshold below which the demodulated data is set to 0 if squelching
is enabled. The squelch level is an absolute value.
Remote command:
[SENSe:]ADEMod<n>:SQUelch:LEVel
AF Coupling
Controls the automatic correction of the frequency offset and phase offset of the input
signal:
This function is only available for FM or PM time domain evaluations.
●
FM time evaluation
If DC is selected, the absolute frequency is displayed, i.e. an input signal with an
offset relative to the center frequency is not displayed symmetrically with respect to
the zero line.
If AC is selected, the frequency offset is automatically corrected, i.e. the trace is
always symmetric with respect to the zero line.
●
PM time evaluation
If DC is selected, the phase runs according to the existing frequency offset. In addi-
tion, the DC signal contains a phase offset of ± π.
If AC is selected, the frequency offset and phase offset are automatically corrected,
i.e. the trace is always symmetric with respect to the zero line.
Remote command:
[SENSe:]ADEMod<n>:AF:COUPling
Selected Trace
Defines the trace used to determine the results in the Result Summary.
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Configuration
Demodulation
111