R&S FSMR, Operating Manual

Page: 674 / 955

SENSe:ADEMod - Subsystem R&S FSMR
1313.9723.12 6.1-138 E-1
or
"CALC:FEED 'XTIM:RFP:AFSP'
'Switches on result display AF spectrum of
'RF power signal
"ADEM:BAND 5 MHz"
'Sets the measurement bandwidth to 5 MHz
"ADEM:AF:STAR 0kHz"
'Sets the AF start frequency to 0 kHz
"ADEM:AF:STOP 500kHz"
'Sets the AF stop frequency to 500 kHz
Characteristics: *RST value: 2.5 MHz
SCPI: device-specific
[SENSe:]ADEMod[:STATe] ON | OFF
This command switches on the FM demodulator of the instrument. The instrument will be set to time-
domain measurement (span = 0) at the current center frequency.
The measurement is always performed in screen A. Split-screen operation will be switched off as
soon as the demodulator is activated.
Example:
"ADEM ON"
Switch on the FM demodulator
Characteristics: *RST value: OFF
SCPI: device-specific
[SENSe:]ADEMod:BANDwidth | BWIDth:DEModulation <numeric_value>
This command defines the demodulation bandwidth used for analog demodulation. The required
sampling rate is automatically set depending on the selected demodulation bandwidth.
The available demodulation bandwidths are determined by the existing sampling rates..
Rounded
demodulation
bandwidth
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
6.4 kHz 7.8125 kHz
3.2 kHz 3.90625 kHz
1.6 kHz 1.953125 kHz
800 Hz 976.5625 Hz
400 Hz 488.28125 Hz
200 Hz 244.140625 Hz
100 Hz 122.0703125 Hz
Example:
"ADEM:BAND:DEM 1MHz"
'Sets the demodulation bandwidth to 1 MHz.
Characteristics: *RST value: 5 MHz
SCPI: device-specific