Rohde & Schwarz FSWP Series - Page 96

Remote Commands for the I/Q Analyzer
R&S
®
FSWP
96User Manual 1177.5856.02 ─ 07
TRACe:IQ:DATA
Return values:
<Results>
TRACe:IQ:DATA:FORMat <Format>
This command selects the order of the I/Q data.
For details see Chapter A.2, "Reference: Format Description for I/Q Data Files",
on page 152.
Parameters:
<Format> COMPatible | IQBLock | IQPair
COMPatible
I and Q values are separated and collected in blocks: A block
(512k) of I values is followed by a block (512k) of Q values, fol-
lowed by a block of I values, followed by a block of Q values etc.
(I,I,I,I,Q,Q,Q,Q,I,I,I,I,Q,Q,Q,Q...)
IQBLock
First all I-values are listed, then the Q-values
(I,I,I,I,I,I,...Q,Q,Q,Q,Q,Q)
IQPair
One pair of I/Q values after the other is listed
(I,Q,I,Q,I,Q...).
*RST:
IQBL
TRACe:IQ:DATA:MEMory? [<OffsetSamples>,<NoOfSamples>]
This command queries the I/Q data currently stored in the capture buffer of the
R&S FSWP.
By default, the command returns all I/Q data in the memory. You can, however, narrow
down the amount of data that the command returns using the optional parameters.
If no parameters are specified with the command, the entire trace data is retrieved; in
this case, the command returns the same results as TRACe:IQ:DATA. (Note, however,
that the TRAC:IQ:DATA? command initiates a new measurement before returning the
captured values, rather than returning the existing data in the memory.)
The command returns a comma-separated list of the measured values in floating point
format (comma-separated values = CSV). The number of values returned is 2 * the
number of complex samples.
The total number of complex samples is displayed in the channel bar in manual opera-
tion and can be calculated as:
<SampleRate> * <CaptureTime>
(See TRACe:IQ:SET, TRACe:IQ:SRATe on page 134 and [SENSe<n>:]SWEep:
TIME on page 94)
Retrieving Results