Rohde & Schwarz R&S FSP Series, Operating Manual

Page: 636 / 796

R&S FSP Remote Control – Description of Commands
TRACe Subsystem
6.242 Operating Manual 1164.4556.12 - 06
Parameter: <offset samples>: Offset of the values to be output, referenced to the start of the
sampled data.
Value range: 0 ... <# of samples> - 1, where <# of samples> is the value specified
with the TRACe:IQ:SET command
<# of samples>: Value range: 1 ... <# of samples> - <offset samples> where
<# of samples> is the value specified with the TRACe:IQ:SET command.
Example:
"TRAC:IQ:STAT ON"
'activates the I/Q data sampling
"TRAC:IQ:SET NORM,10MHz,32MHz,EXT,POS,100,4096"
'configures the measurement:
'Filter type: Normal
'RBW: 10 MHz
'Sample Rate: 32 MHz
'Trigger Source: External
'Trigger Slope: Positive
'Pretrigger Samples: 100
'# of Samples: 4096
"INIT;*WAI"
'starts the measurement and waits for its end
"FORMat REAL,32"
'specifies the format of the response data
'Reading the results:
"TRAC:IQ:DATA:MEM? 0,2048"
'reads in 2048 I/Q values starting with the beginning of the sampling
"TRAC:IQ:DATA:MEM? 2048,1024"
'reads in 2048 I/Q values starting with the beginning of the sampling
"TRAC:IQ:DATA:MEM? 100,512"
'reads in 512 I/Q values starting with the trigger time (<Pretrigger Samples> was
100)
Return value: Irrespective of the output format selected, the data is scaled linearly with 'V' as the
unit and corresponds to the voltage at the RF input of the device.
The return buffer is similarly configured to the return buffer with the TRACe:IQ:
DATA? command where all I data has the value 0.
Characteristics: *RST value: --
SCPI: device-specific
Mode: A-T