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Advanced Software Features
Ignore Out Of Lock Mode
Ignore Out Of Lock Mode
The Ignore Out Of Lock test mode enables all of the troubleshoot mode
functions, plus it causes the software to not check for an out-of-lock
condition before or during a measurement. This allows you to measure
sources with high close-in noise that normally would cause an out-of-lock
condition and stop the measurement. When Ignore Out Of Lock is selected,
the user is responsible for monitoring phase lock. This can be accomplished
using an oscilloscope connected to the Agilent/HP 70420A Aux. Monitor
port to verify the absence of a beatnote and monitor the dc output level.
•
When Ignore Out Of Lock is selected, the test system does not verify
the phase lock of the measurement. The user must ensure that the
measurement maintains phase lock during the measurement.
16-6 Agilent Technologies E5500 Phase Noise Measurement System
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