R&S NRP-Z5x
Program module "Update S-Parameters"
1137.0463.12
3.9
E-3
Procedure
To load an s-parameter table into the calibration set of the sensor, proceed as follows:
1. Connect the sensor to the USB port of the PC and start the program module
Update S-
Parameters
. The corresponding dialog window is opened (Fig. 3-3).
2. Make sure
Keep Current S-Parameter Data
is deactivated.
3. Under
S-Parameter File
enter
the search path and the name of the S2P file containing the
parameters. Press the
Browse
... button to open a file-opening dialog where the S2P measurement
data file can be easily selected.
4. Under
Uncertainty File
enter
the search path and the name of the measurement uncertainty file
containing the measurement uncertainty of the s-parameter test system. Press the
Browse
...
button to open a file-opening dialog where the measurement uncertainty file can be easily selected.
5. Enter the upper and lower nominal measurement limit of the sensor-twoport combination in the
Lower Power Limit
and
Upper Power Limit
fields
.
6. Enter a name for the loaded s-parameter set in the
S-Parameter Device Mnemonic
field. This
name can later be queried with
SYSTem:INFO? "SPD Mnemonic"
and is displayed on the
R&S NRP basic unit when s-parameter correction is switched on.
7. Activate
S-Parameter Correction on by Default
if the
SENSe:CORRection:SPDevice:STATe
switch should be automatically set to
ON
when the sensor is put into operation.
8. Designations for calibration laboratory and person responsible for calibration may be entered in the
Calibration Lab
and
Calibration Engineer
fields. These designations are stored in the calibration
data set. They are implicitly set to „user lab“ and „user“, respectively, if the fields are left blank.
9. Press
Start
for loading. (The dialog is closed with
OK
and the set parameters are retained. When
the dialog is exited with
Cancel
, all parameter modifications are ignored.)
Fig. 3-3
Dialog window for loading an s-parameter table
During loading, the current calibration data set of the sensor is overwritten. To be on the safe side, a
backup copy of the current calibration data set is therefore automatically stored before s-parameters are
loaded. The names of the backup files have the structure <type>_<batch number>_<date>_<time>.bak,
where <type> is the sensor type, <batch number> is the batch number of the sensor, <date> the date of
the s-parameter update in yyyymmdd format and <time> the time of the s-parameter update in the
format hhmmss. By default, a subdirectory named “Backup” is created for the backup files in the
program directory. With
Select Backup Directory …
it is possible to select a different directory.
