User`s guide

468 Chapter 16
Troubleshooting
Basic Signal Generator Operations
Sweep Appears to be Stalled
The current status of the sweep is indicated as a shaded rectangle in the progress bar. You can
observe the progress bar to determine if the sweep is progressing. If the sweep appears to
have stalled, check the following:
❏ Have you turned on the sweep by pressing any of the following key sequences?
Sweep/List > Sweep > Freq
Sweep/List > Sweep > Ampl
Sweep/List > Sweep > Freq & Ampl
❏ Is the sweep in continuous mode? If the sweep is in single mode, be sure that you have
pressed the
Single Sweep softkey at least once since completion of the prior sweep. Try
setting the mode to continuous to determine if the missing single sweep is blocking the
sweep.
❏ Is the signal generator receiving the appropriate sweep trigger? Try setting the
Sweep Trigger softkey to Free Run to determine if a missing sweep trigger is blocking the
sweep.
❏ Is the signal generator receiving the appropriate point trigger? Try setting the Point Trigger
softey to Free Run to determine if a missing point trigger is blocking the sweep.
❏ Is the dwell time appropriate? Try setting the dwell time to one second to determine if the
dwell time was set to a value which was too slow or too fast for you to see.
❏ Do you have at least two points in your step sweep or list sweep?
Cannot Turn Off Sweep Mode
Press Sweep/List > Sweep > Off.
In the sweep mode menu you can choose to set the sweep to various sweep types or to turn
sweep off.
Incorrect List Sweep Dwell Time
If the signal generator does not dwell for the correct period of time at each sweep list point,
follow these steps:
1. Press
Sweep/List > Configure List Sweep.
This displays the sweep list values.
2. Check the sweep list dwell values for accuracy.