Agilent Technologies E5500 Phase Noise Measurement System
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Expanding Your Measurement Experience
Testing the Agilent/HP 8644B Internal/External 10 MHz
Selecting Loop
Suppression
Verification
1. From the Define menu, choose Measurement; then choose the Cal tab
from the Define Measurement window.
2. In the Cal dialog box, check Verify calculated phase locked loop
supression and Always Show Suppression Graph. Select If limit is
exceeded: Show Loop Suppression Graph.
3. When you have completed these operations, click the Close button
.
Setup Considerations
for the
Agilent/HP 8663A
10 MHz Measurement
Measurement Noise Floor
The signal amplitude at the R input (Signal Input) port on the Agilent/HP
70420A sets the measurement noise floor level. Use the following graph to
determine the amplitude required to provide a noise floor level that is below
the expected noise floor of your UUT. For more information about this
graph, refer to
Chapter 18, “Reference Graphs and Tables”
.
