S331L PM PN: 10580-00322 Rev. F 4-1
Chapter 4 — Cable & Antenna
Analyzer Mode Commands
The commands in this section apply to the Cable and Antenna Analysis mode.
:CALCulate#:DATA? FDATa|SDATa|FMEM|SMEM
Query Description: Query returns formatted data block of the specified trace.
Param Range: FDATa|SDATa|FMEM|SMEM
Example: To query trace 1 S-data:
:CALC1:DATA? SDATA
Notes: Replace ’#’ with the required trace number. Check User Guide for the
number of supported traces in each mode. FDATa: Formatted (or Final)
data. The returned data are based on the Measurement Mode that is
associated with the trace. For measurement types that use only one
number per point (such as Return Loss, VSWR, Cable Loss,
Transmission, Phase), the command returns one number per data point.
For graph types that use two numbers per point (such as Smith Chart),
the command returns two numbers per data point. SDATa: Complex
measurement data. The returned numbers, which are independent of
the Measurement Mode that is associated with the trace, are complex
measurement data pairs (Real and Imaginary) for each point of the
trace. A 517 point trace therefore has a total of 1034 values that get
transferred. FMEM: Formatted (or Final) Memory data. Similar to
FDATa, but for memory data. SMEM: Complex memory data. Similar to
SDATa, but for memory data. Note that in order to get valid data when
querying for memory data, you must first store a trace into memory.
The format of the block data that is returned can be specified by the
command :FORMat[:READings][:DATA]. The response begins with an
ASCII header that specifies the number of data bytes. It appears in the
format #AX, where A is the number of digits in X, and X is the number
of bytes that follow the header. Each data point is separated by a
comma delimiter.
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