Rohde & Schwarz FSW Series, User Manual

Page: 113 / 371

Configuration
R&S
®
FSW-K7
113 User Manual 1173.9240.02 ─ 17
and f
max
=DBW/2
f
max
and span
min
are specified in the data sheet.
Remote command:
[SENSe:
​
]ADEMod:
​
SPECtrum:
​
SPAN[:
​
MAXimum]
​
on page 260
[SENSe:
​
]ADEMod:
​
SPEC:
​
SPAN:
​
ZOOM
​
on page 260
Demodulation Bandwidth
Defines the demodulation bandwidth of the measurement. The demodulation band-
width determines the sampling rate with which the input signal is captured and ana-
lyzed.
For recommendations on finding the correct demodulation bandwidth see chapter 4.2,
"Demodulation Bandwidth" , on page 28.
For details on the relation between demodulation bandwidth and sampling rate refer to
chapter 4.3, "Sample Rate, Measurement Time and Trigger Offset" , on page 29.
Remote command:
[SENSe:
​
]BANDwidth|BWIDth:
​
DEMod
​
on page 242
RF Full Span
Sets the span (around the center frequency) of the RF data to be evaluated to the
demodulation bandwidth.
Remote command:
[SENSe:
​
]ADEMod:
​
SPECtrum:
​
SPAN[:
​
MAXimum]
​
on page 260
5.8.3 AF Filter
The AF filter reduces the evaluated bandwidth of the demodulated signal and can
define a weighting function. It is configured in the "AF Filter" tab of the "Demodulation
Settings" dialog box.
AF filters are only available for AF time domain evaluations.
A maximum of two filters out of high pass, low pass or deemphasis filters can be active
at the same time if analog demodulation output is active (see
chapter 5.9.2, "Analog
Demodulation Output Settings" , on page 124).
► To display this dialog box, do one of the following:
● Select the "Demod Settings" button in the Analog Demodulation "Overview"
and select the "AF Filter" tab.
● Select the MEAS CONFIG key and then the "AF Filter Config" softkey.
Demodulation