Keysight NFA Series Noise Figure Analyzers Service Guide 475
Post-Repair Procedures
Post-Repair Procedures
A16
Reference
Assembly
FPGA Synchronization
b
10 MHz Frequency Reference Adjust
50 MHz Calibrator Amplitude Adjust
Frequency Reference Accuracy
Residual Responses
Displayed Average Noise Level
Frequency Readout Accuracy
Count Accuracy
Absolute Amplitude Accuracy
Phase Noise (All Tests)
a. Calibration Application Software is required for all performance tests and most adjustments. For
details go to http://www.keysight.com/find/calibrationsoftware
b. See the Additional Tasks section in this chapter for detailed instructions on this task.
c. To set the instrument time and date press Windows icon, Start, Control Panel, Clock, Lan-
guage, and Region, Date and Time.
d. Before replacing the A5 Disk Drive, see the “Calibration Data Backup and Rest36ore” section in this
chapter for details.
e. See Chapter 18, “Instrument Software” for instructions on updating the instrument software to the
latest version.
Some Adjustment tests may be found in the Utility portion of the Test
Plan.
Table 16-1 Post-Repair Testing Requirements (Continued)
Assembly
Adjustments to Perform
(in the order listed)
a
Performance Verifications to Perform After
Adjustments
a