3-4
Troubleshooting
If You Encounter a Problem
• Incorrect List Sweep Dwell Time?
If the signal generator does not dwell for the correct period of time at each sweep
list point, first check the sweep list dwell values for accuracy. Press
Sweep/List,
Configure List Sweep and the sweep list values will be displayed. Edit the dwell
values if they are incorrect.
If the list dwell values are correct, check to see 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, press
Configure Step Sweep and observe the value
set for the
Step Dwell softkey.
• Can’t Turn Off Help Mode?
There are two help modes (single and continuous) available on the signal
generator. In single mode (the factory preset condition) when you press the
Help
key, help text is provided for your next key press. Now press any key and you will
exit the help function and the function of the key you pressed is also executed.
When you are in continuous help mode, when you press the
Help key, help text is
provided for your next key press and that key’s function is also executed (except
for the
Preset key). You will stay in this help mode until you press the Help key
again. To change from continuous to single mode, press
Utility,
Instrument Info/Help Mode and toggle the Help Mode Single Cont softkey to Single.
• LF OUTPUT Signal is a Sinewave but the RF OUTPUT Signal
is a Pulse Squarewave?
The LF OUTPUT connector will output a signal where the frequency and shape is
set by the internal source as it is being used by a modulation. However, if you are
generating a pulse squarewave, the LF OUTPUT signal is correctly output as a
sinewave. That sinewave is later squared by the modulator to generate the pulse
modulation.
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