Keysight N9923A, User Manual, Page: 198 / 276

198 Keysight N9923-90001 User’s Guide
File Management
Saving and Recalling Files
— Only data traces are saved – not memory traces.
Corrections
— When parameters are corrected, data is returned even when not displayed.
Data is returned with the correction type that is applied for each
S-parameter. The correction type for each S-parameter is annotated in the
header.
— When parameters are NOT corrected or displayed:
—With Smith chart and Polar formats, Real/Imag zero-filled data
appears as (1.0, 0.0).
—With all other formats, LogMag/Phase zero-filled data appears as (0.0,
0.0).
> Display formats
In CAT Mode, S1P files are always Magnitude (dB) / Phase (angle) format.
In NA Mode:
— Smith chart and Polar display formats are ALWAYS saved in Real/Imag data
pairs.
— All other display formats are saved in LogMag/Phase (dbAngle).
> What Data Processing functions are included in saved SNP Data:
In NA Mode, the data processing functions (such as trace math) that are
included in the SNP data depends on a Preference setting. Click
System
, then
Preferences , then Preferences , then scroll to NA, SNP File Save , then select
from the following:
—
Default
– SNP data does NOT include smoothing. SNP data saves are taken
AFTER data processing (location 2) on the processing chain.
—
Ad vanced
– SNP data includes the following:
—With Smith or Polar display format, SNP data saves are taken BEFORE
most processing (location 1 on the data processing chain).
—With any other display format, SNP data saves are taken just AFTER
Formatting and Smoothing is applied (location 3 on the data
processing chain). For each non-active trace, SNP trace data is
reprocessed using the data processing chain of the active trace.
See the FieldFox data processing chain at the
Supplemental Online Help:
http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm
Learn
more about System Preferences in
“Preferences” on page 213
.