Service Guide E8361-90001 3-51
PNA Series Microwave Network Analyzers Tests and Adjustments
E8361A Adjustments
3.8 GHz PMYO Frequency Adjustment
The 3.8 GHz adjustment is used to adjust the frequency accuracy of the network analyzer’s
3.8 GHz permanent-magnet YIG oscillator (PMYO) on the A12 source 20.
Equipment used for the Frequency Adjustment at 3.8 GHz
Procedure
1. Connect the equipment as shown in Figure 3-23. Connect a GPIB cable between the
network analyzer and the spectrum analyzer.
Figure 3-23 Setup for Adjustment of the 3.8 GHz PMYO
2. On the System menu, point to Service, Adjustments, and then click
3.8 GHz 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
Spectrum analyzer
8565E
856xE
a
a. Must be capable of measuring a signal at 3.8 GHz.
Test cable, 1.85 mm (f) to 1.85 mm (f) N4697E N4697-60200
Adapter, Type-N (m) to 2.4 mm (m)
b
b. The 1.85 mm connector has the same ruggedness and is compatible with the
2.4 mm connectors. 1.85 mm and 2.4 mm adapters are interchangeable.
11903A None
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