R&S FSMR
TRACe Subsystem
1313.9723.12
6.1-231
E-1
TRACe<1|2>:IQ:DATA:MEMory[:RF]?
<offset samples>,<# of samples>
This command permits the readout of previously acquired (and frequency response corrected) I/Q
data from the memory, with indication of the offset related to the start of measurement and with
indication of the number of measurement values. Therefore a previously acquired data set can be
read out in smaller portions. The maximum amount of available data depends on the settings of
command TRACe:IQ:SET, the output format on the settings in the FORMat – subsystem.
The command requires that all requested measurement data be completely retrieved
before the device accepts any further commands.
If no baseband IQ data is available in the memory because the associated
measurement has not yet been started, the command generates a query error.
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.
Examples:
"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 values
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
Summary of Contents for FSMR
Page 1: ...R S FSMR Measuring Receiver Operating Manual Test Measurement Operating Manual 1313 9723 12 01...
Page 4: ......
Page 22: ......
Page 26: ...Contents Preparing for Operation R S FSMR 1155 5047 12 I 1 2 E 2 Fig 1 1 Front View...
Page 28: ...Front View R S FSMR 1166 3363 12 1 2 E 2 Fig 1 1 Front View...
Page 30: ...Front View R S FSMR 1166 3363 12 1 4 E 2 Fig 1 1 Front View...
Page 32: ...Front View R S FSMR 1166 3363 12 1 6 E 2 Fig 1 1 Front View...
Page 34: ...Front View R S FSMR 1166 3363 12 1 8 E 2 Fig 1 1 Front View...
Page 66: ......
Page 86: ......
Page 130: ...Menu Overview R S FSMR 1166 3363 12 3 42 E 3 Menu Overview another Keys MKR Key...
Page 141: ...R S FSMR Menu Overview 1166 3363 12 3 53 E 3 LOCAL Menu LOCAL...
Page 144: ......
Page 150: ......
Page 156: ......
Page 202: ......
Page 208: ......
Page 216: ......
Page 230: ......
Page 254: ......
Page 280: ......
Page 348: ......
Page 376: ...Configuration Setup R S FSMR 1166 3363 12 4 19 28 E 2...
Page 390: ......
Page 408: ......
Page 428: ......
Page 446: ......
Page 536: ......
Page 799: ......
Page 921: ......
Page 935: ......
Page 937: ...Contents Error Messages R S FSMR 1166 3363 12 I 9 2 E 1...