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38 Installation Note N5245-90109
Upgrade Kit Order Numbers: N5244AU-921 and N5245AU-921
-
Step 28.Perform Post-Upgrade Adjustments and Calibration
Adjustments
The following adjustments must be made due to the hardware changes of the
analyzer.
— Default EE adjustment - select the LO Drive-NF adjustment and initialize
the values.
— Source adjustment
— Receiver adjustment
— Noise figure adjustment
These adjustments are described in the PNA Service Guide and in the PNA
on-line HELP. A list of equipment required to perform these adjustments is also
found in the service guide.
To view the Service Guide online, use the following steps:
1.
Go to
2.
In the Search box, enter the model number of your analyzer, N5245A, and
click
Search
.
3.
Click
Technical Support > Manuals
.
4.
Click
Service Manual
.
5.
Click the service guide title to load the PDF file.
6.
When the PDF of the Service Guide is displayed, scroll through the
Contents section bookmarks to locate the “Tests & Adjustments” chapter.
After the specified adjustments have been performed, the analyzer should
operate and phase lock over its entire frequency range.
Operator’s Check
Perform the Operator’s Check to check the basic functionality of the analyzer.
For instructions, refer to the “Tests & Adjustments” chapter of the Service
Guide.
If you experience difficulty with the basic functioning of the analyzer, contact
“Contacting Keysight” on page 4
Calibration
Although the analyzer functions, its performance relative to its specifications
has not been verified. It is recommended that a full instrument calibration be
performed using the analyzer’s internal performance test software. Refer to the
analyzer’s service guide for information on this performance test software.