Rohde & Schwarz FSWP Series - Page 130

Remote Commands for the I/Q Analyzer
R&S
®
FSWP
130User Manual 1177.5856.02 ─ 07
Parameters:
<Bandwidth> refer to data sheet
*RST: RBW: AUTO mode is used
Default unit: HZ
Example:
IQ:BAND:MODE MAN
Switches to manual RBW mode.
IQ:BAND:RES 120000
Sets the RBW to 120 kHz.
Manual operation: See " RBW " on page 61
[SENSe:]IQ:FFT:ALGorithm
<Method>
Defines the FFT calculation method.
Parameters:
<Method> SINGle
One FFT is calculated for the entire record length; if the FFT
length is larger than the record length (see [SENSe:]IQ:FFT:
LENGth and TRACe:IQ:RLENgth), zeros are appended to the
captured data.
AVERage
Several overlapping FFTs are calculated for each record; the
results are averaged to determine the final FFT result for the
record.
The user-defined window length and window overlap are used
(see [SENSe:]IQ:FFT:WINDow:LENGth and [SENSe:]IQ:
FFT:WINDow:OVERlap).
*RST:
AVER
Example:
IQ:FFT:ALG SING
Manual operation: See " Transformation Algorithm " on page 62
[SENSe:]IQ:FFT:LENGth <NoOfBins>
Defines the number of frequency points determined by each FFT calculation. The more
points are used, the higher the resolution in the spectrum becomes, but the longer the
calculation takes.
Parameters:
<NoOfBins> integer value
Range: 3 to 524288
*RST: 4096
Example:
IQ:FFT:LENG 2048
Manual operation: See " FFT Length " on page 62
Configuring I/Q Analyzer Measurements