Using Functions ESG Family Signal Generators
If You Encounter a Problem
2-18
User’s Guide
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.
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 milli-seconds.
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, 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.
To Next Page
Loading...
Need help?
General
