View The Normalized Parameters; Selecting The Appropriate Measurement Calibration - HP 8510 User Manual

3. Press
4 S 12 5 4 DISPLAY 5
trace is the frequency response di erence of the S
measurement.
Now that these traces are stored, they can be used to normalize the corrected data.

View the Normalized Parameters

Use these traces to normalize the corrected data to the new levels after the attenuation is
changed. This example uses normalization only for S
view the corrected parameters.
1. Press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DISPLAY: DATA
4 DISPLAY 5
2. Press and view the S
4 S 11 5
3. Press and view the S
4 S 22 5
4. Press and view the S
4 S 21 5
coecient should be 1
5. Press and view the S
4 S 12 5
View the S measurement. If the thru is connected, the transmission coecient should be
12
1 0  .
6
Normalization is turned o for the S
selected and normalization is turned on to view S
Since these are accurate, repeatable attenuators, this sequence may be e ective in your
application. If it is necessary to change other parts of the test setup, especially components
connected to the test ports or connected between the rear panel links, this procedure may
require additional steps to adequately compensate for the changes.

Selecting the Appropriate Measurement Calibration

The HP 8510 pulsed-RF network analyzer system allows you to calibrate in the same
environment as your measurement. For example, if you are making a high power, pulsed-RF
measurement, you can calibrate in the same high power, pulsed-RF mode. Calibration data is
taken only while the pulse is on. This type of calibration may prevent damage to calibration
standards that would be damaged in high power, CW calibrations.
Signal levels available for calibration and for measurement may also in uence the decision of
which error model to use for the measurement.
If appropriate signal levels can be achieved for all parameters during calibration and
measurement, the HP 8510 2-Port accuracy enhancement error model, either the HP 8510 Full
2-Port or TRL 2-Port, provides best accuracy by providing best characterization and removal
of the systematic errors in the test setup. If the device is noninsertable, the HP 8510 Adapter
Removal calibration procedure can be implemented using the Full 2-Port and/or the TRL
2-Port calibration.
!
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
to store the S
DATA MEMORY
.
measurement.
11
measurement.
22
measurement. If the thru is connected, the transmission
21
0  .
6
measurement.
12
and S
11
trace in trace memory 2. This
12
signal path between calibration and
12
and S . Press the following keys to
21 12
measurements, then the appropriate memory is
22
and S .
21 12
High Power Measurements 10-7