Agilent Technologies Signal Analyzer N9030a - Manual (Page 1102)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Save
15 9.5140E+05 –60.89
16 9.5920E+05 –60.90
17
18
19
20
Spectrogram
This section discusses the Spectrogram Results file format. The Spectrogram choice only appears
if option EDP is licensed.
The Spectrogram results are the same as a Trace data export, except that instead of having just
one trace’s data, all 300 traces appear one after the other.
.
Each trace has its own data mark; the data for Spectrogram Trace 0 follows the row marked
DATA, the data for Spectrogram Trace 1 follows the row marked DATA1, for Spectrogram Trace 2
follows the row marked DATA2, and so on.
Each DATA row has a timestamp in the second column (as of firmware revision A.11.01). So, for
example, if Trace 0 had a relative start time of 1729.523 sec, then the first DATA row would look
like this:
DATA,1729.523
And if Trace 13 had a relative start time of 100.45 sec, then the fourteenth data row would look
like:
DATA13,100.453
To find the absolute time for the relative timestamps of each trace, the last row before the first
DATA row gives the absolute start time of the Spectrogram, in the form YYYYMMDDHHMMSS
So, for example, if the absolute start time is 13:23:45:678 on January 30, 2012, this row would
look like:
Start Time,20120130132345678
NOTE: the resolution of the absolute time stored is 1 ms, which matches up with the fact that
the fastest sweep time is also 1 ms. However, there is no specification for the absolute accuracy
of the clock in the analyzer, nor is there any facility provided to allow the user to set this time to
any particular degree of accuracy.
1102 Remote Language Compatibility Measurement Application Reference