3-40 Service Guide N5227-90001
Tests and Adjustments PNA Series Microwave Network Analyzers
Adjustments N5227A
10 MHz Frequency Reference Adjustment
The 10 MHz frequency adjustment is used to adjust the frequency accuracy of the network analyzer’s 10
MHz frequency reference on the A14 frequency reference board assembly.
Equipment Used for the 10 MHz Frequency Reference Adjustment
Procedure
NOTE This adjustment typically adjusts to within 0.01 ppm.
1. Connect the equipment as shown in Figure 3-13. Connect a GPIB cable between the network analyzer
and the frequency counter.
Figure 3-13 Equipment Setup for the 10 MHz Frequency Reference Adjustment
2. Press UTILITY , then , then , then click 10 MHz Freq Adjustment.
3. Ensure the GPIB settings are correct.
4. Follow the instructions and prompts as they are displayed.
Equipment Type Model or Part Number Alternate Model or Part Number
Cable, BNC, 50, 24 inch 8120-1839 Any
Frequency counter 53151A, Option 001 Any that will measure a signal at 10 MHz.
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