
8 .
9 .
10.
11.
12.
13.
trace
the
corresponding to the load used. If a sliding load is
used, press
to access the Sliding Load menu. Position the slide and press
.._.
. . . . . .
When all the appropriate load measurements are complete, the load data is measured and
::
Repeat the previous TRM load measurement steps for PORT 2.
After the measurement is complete, press:
measure the “ISOLATION” class, press:
q
You could choose not to perform the isolation measurement by pressing
. .
. . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . . . . . . .
Note
You should perform the isolation measurement when the highest dynamic range
is desired.
To perform the best isolation measurements, you should reduce the system
bandwidth, and/or activate the averaging function.
A poorly measured isolation class can actually degrade the
measurement performance. If you are in doubt of the isolation measurement
quality, you should omit the isolation portion of this procedure.
14. You may repeat any of the steps above. There is no requirement to go in the order of
steps. When the analyzer detects that you have made all the necessary measurements, the
CAL.
The
message
COMPUTING CAL COEFFICIENTS
will appear, indicating that the analyzer is
performing the numerical calculations of error coefficients
Note
You can save or store the measurement correction to use for later
measurements. Refer to the “Printing, Plotting, and Saving Measurement
Results” chapter for procedures.
15. Connect the device under test. The device S-parameters are now being measured.
Note
When making measurements using the same port with uncoupled channels, the
power level for each channel must fall within the same power range setting of
that single port. An error message will be displayed if you enter two power
levels that do not fall within the same power range.
Optimizing Measurement Results
Содержание HP 8753E
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