Selecting Loop Suppression Verification; Setup Considerations For The Stable Rf Oscillator Measurement - Agilent Technologies E5500A User Manual

Selecting Loop
Suppression
Verification
Setup Considerations
for the Stable RF
Oscillator
Measurement
Absolute Measurement Examples
Stable RF Oscillator
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
suppression 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
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. (The Checking the Beatnote
procedure in this section will provide you with an opportunity to estimate
the measurement noise floor that your UUT will provide.)
7-6 Agilent Technologies E5500 Phase Noise Measurement System
.