R&S ESU Series Operating Manual page 685

R&S ESU
6.20 TRACe Subsystem
The TRACe subsystem controls access to the instrument's internal trace memory.
6.20.1 General Trace Commands
TRACe[:DATA] TRACE1 | TRACE2 | TRACE3 | SINGle | PHOLd | SCAN | STATus | FINAL1 | FINAL2
| FINAL3 | LIST | SPURious, <block> | <numeric_value>
This command transfers trace data from the control computer to the instrument, the query reads trace
data out of the instrument.
Programmiing trace data to the instrument is available in spectrum analyzer mode.
The numeric suffix at TRACe<1|2> selects the measurement window.
If the FM demodulator (option R&S FS-K7) is active, only the displayed trace data
is read out and recalled. A portion of the measurement data that can be called by
means of a marker, however, is calculated from the raw measurement data. These
results are no longer available after recalling a trace; the associated queries gen-
erate a query error.
TRACE1 to TRACE3 selects trace 1 to 3.
LIST reads the peak list in the spurious measurement
details on this measurement see page 220).
The suffix at TRACe<1|2> is irrelevant.
As results a list of <result of range 1>,< result of range 2>,..< result of range n> are
returned.
Every single range has following format:
<No>,<Start>,<Stop>,<rbw>,<freq>,<Levelabs>,<Levelrel>,<Delta>,
<Limitcheck>,<unused1>,<unused2>
Where:
No
Start
Stop
Rbw
Freq
Levelabs
Levelrel
Delta
Limitcheck
Unused1
Unused2
These values are defined via the [SENSe<1|2>:]LIST:RANGe<1...20> subsystem
FINAl lists the whole content of the peak list. Each peak element consists of
the following values
4 bytes: Frequency
4 bytes: Absolute level
4 bytes: Delta between absolute level and limit line value at given
frequency. If no limit line is active, the delta value is set to 0.0.
6.246
Range number
Range start frequency
Range stop frequency
Resolution bandwidth
Frequency of the peak in the range
Absolute peak power of the range in dBm
Reserved (0.0)
Delta of the peak power to the limit line in dB
Limit check state (0 = PASSED, 1 = FAILED)
Reserved (0.0)
Reserved (0.0)
Remote Control – Description of Commands
LIST EVALUATION
Operating Manual 1302.6163.12 - 03
TRACe Subsystem
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