3-50 Service Guide E8361-90001
Tests and Adjustments PNA Series Microwave Network Analyzers
Adjustments E8361A
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 A10 frequency reference board assembly.
Equipment Used for the Frequency Adjustment at 10 MHz
Procedure
NOTE The specification of frequency accuracy is ±1 ppm. However, this test typically
adjusts to ±0.01 ppm.
1. Connect the equipment as shown in Figure 3-22. Connect a GPIB cable between the
network analyzer and the frequency counter.
Figure 3-22 Setup for Adjustment of the 10 MHz Frequency Reference
2. On the System menu, point to Service, Adjustments, and then click
10 MHz Freq Adjust.
3. Ensure the GPIB settings are correct.
4. Click Begin Adj, and then follow the instructions as they are displayed.
Equipment Type
Model or
Part Number
Alternate Model
or Part Number
Cable, BNC, 50Ω, 24 inch 8120-1839 Any
Frequency counter
53151A
Opt 001
Any
a
a. Must be capable of measuring a signal at 10 MHz.
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