Solving Problems
If You Encounter a Problem
Chapter 4 83
Incorrect List Sweep Dwell Time
If the signal generator does not dwell for the correct period of time at each sweep list point, do
the following:
1. Press
Sweep/List > Configure List Sweep.
This displays the sweep list values.
2. Check the sweep list dwell values for accuracy.
3. Edit the dwell values if they are incorrect.
NOTE The effective dwell time at the RF OUTPUT connector is the sum of the value
set for the dwell plus processing time, attenuator switching time, and settling
time. This additional time added to the dwell is generally a few milliseconds.
The TTL output, however, available at the TRIGGER OUT connector, is
asserted high only during the actual dwell time.
If the list dwell values are correct, continue to the next step.
4. Observe if the
Dwell Type List Step softkey is set to Step.
When Step is selected, the signal generator will sweep the list points using the dwell time
set for step sweep rather than the sweep list dwell values.
To view the step sweep dwell time, follow these steps:
a. Press
Configure Step Sweep.
b. Observe the value set for the
Step Dwell softkey.
Recalled a Register and Sweep List is Missing
List sweep information is not stored as part of the instrument state in an instrument state
register. Only the current list sweep is available to the signal generator. List sweep data can
be stored to the instrument catalog. For instructions, see “Storing Files” on page 45.
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