R&S EM510, Manual

Page: 152 / 183

EM510 TRACe Subsystem
4065.7763.32-01.00 5.116
. [:DATA] <trace_name>
Query about the trace data.
Error message:
If the trace name is unknown, an error
-141,"Invalid character data"
will be generated.
Parameters:
<trace_name>
name of desired trace as
<Character Data>
(
MTRACE, ITRACE, IFPAN
or
SSTART, SSTOP)
Result:
The following is valid for
MTRACE
:
Output of measured values of all sensor functions switched on. If no function is switched on,
NaN
(Not a
Number) is output.
If
FREQ:OFFS
is switched on, only the offset value is output. If
VOLT:AC
is switched on, only the level
value is output. If
FREQ:OFFS
and
VOLT:AC
are switched on, first the level value and then the offset
value are output.
The INF value 9.9E37 is entered into the result buffers MTRACE and ITRACE for MSCAN, FSCAN or
PSCAN to identify the range limit.
If measurements can't be carried out due to current settings (e.g. offset measurement with I/Q, CW, ISB
or SSB), it is indicated by the NINF value –9.9E37.
The following is valid for
ITRACE
:
Output of channel number and receive frequency.
Note:
With SW option EM510IM (ITU Measurement) installed, apart from level and offset the measurement
functions AM modulation index , FM frequency deviation, PM phase deviation and band width
measurement are also available.
Depending on the setting, the output format is defined by the
FORMat:DATA
command:
ASCii
-> normal ASCII output:

level in dBuV

offset in Hz signed

AM modulation index in %

AM positive modulation index in %

AM negative modulation index in %

FM frequency deviation in Hz

positive frequency deviation in Hz

negative frequency deviation in Hz

phase deviation in rad

bandwidth in Hz

channel number without unit

frequency in Hz