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e5505a_user_select_graph_desc_graph_tab
25 Jun 04 rev 3
Figure 205 Select graph description on Graph tab
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Setup considerations
Connecting cables
The best results will be obtained if semi-rigid coaxial cables are used to
connect the components used in the measurement; however, BNC cables have
been specified because they are more widely available. Using BNC cables may
degrade the close-in phase noise results and, while adequate for this example,
should not be used for an actual measurement on an unknown device unless
absolutely necessary.
Measurement environment
The low noise floors typical of these devices may require that special attention
be given to the measurement environment. The following precautions will help
ensure reliable test results:
• Filtering on power supply lines
• Protection from microphonics
• Shielding from air currents may be necessary.
Agilent E5505A User's Guide
When you have completed these operations, click the Close button.
FM Discriminator Measurement Examples
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