User`s guide

Table Of Contents
Absolute Measurement Fundamentals
5
Agilent E5505A User’s Guide 117
Action
If beatnote drift exceeds the limits of the Capture or drift tracking ranges set
for your measurement, the system is not able to complete the measurement.
You have two possible alternatives.
1
Minimize beatnote drift.
By Allowing sources to warm-up sufficiently.
By Selecting a different reference source with less drift.
2
Increase the capture and drift tracking Ranges.
By Selecting a measurement example in this chapter that specifies a drift
rate compatible with the beatnote drift rate you have observed.
By Increasing the peak tuning range for the measurement. (Further
information about increasing the PTR is provided in Changing the PTR.)