Operating instructions

R&S ESCI [SENSe:]ADEMod - Subsystem
1166.6004.12 6.147 E-1
[SENSe:]ADEMod:SPECtrum:BANDwidth|BWIDth[:RESolution] 1 Hz to 10 MHz
This command sets the resolution bandwidth for spectrum represetation that was determined from
the analog demodulation data.
The recording time required is calculated from the and the sampling rate indirectly set via
ADEM:SPEC:SPAN:MAX or ADEM:BAND. If the available recording time is not sufficient for the
given bandwidth, the recording time is set to ist maximum and the resolution bandwidth is enlarged
to the resulting bandwidth.
Example: "ADEM ON" ' Switches on the FM demodulator
"CALC:FEED 'XTIM:SPEC' ' Switches on the result display RF spectrum
or
"CALC:FEED 'XTIM:FM:AFSP' ' Switches on the result display AF spectrum
'of FM
or
"CALC:FEED 'XTIM:RFP:AFSP' 'Switches on the result display AF spectrum
'of RF power signal
"ADEM:BAND:RES 61.2kHz" 'Sets the resolution bandwidth to 61.2 kHz.
Characteristics: *RST value: 61.2 kHz
SCPI: device-specific
Mode:FM
This command is only available with option R&S FS-K7 (FM Demodulator).
[SENSe:]ADEMod:SPECtrum:SPAN[:MAXimum] <numeric_value>
This command sets the maximum frequency range for displaying the RF spectrum that was
determined from the FM demodulation data. The maximum span corresponds to the measurement
bandwidth of analog demodulation (SENS:ADEM:BAND).
Only discrete values are possible for the span since the available sampling rates are discrete.
Span Sampling rate
10 MHz 32 MHz
8 MHz 16 MHz
5 MHz 8 MHz
3 MHz 4 MHz
1.6 MHz 2 MHz
800 kHz 1 MHz
400 kHz 500 kHz
200 kHz 250 kHz
100 kHz 125 kHz
50 kHz 62.5 kHz
25 kHz 31.25 kHz
12.5 kHz 15.625 kHz
Example: "ADEM ON" 'Switches on the FM demodulator
"CALC:FEED 'XTIM:SPEC' 'Switches on result display RF spectrum
"ADEM:SPEC:SPAN:MAX 5 MHz" 'Sets the max. span to 5 MHz
"ADEM:SPEC:SPAN:ZOOM 1 MHz" 'Sets the displayed span to 1 MHz
Characteristics: *RST value: 5 MHz
SCPI: device-specific
Mode: FM
This command is only available with option R&S FS-K7 (FM Demodulator).