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Keysight EXG and MXG X-Series Signal Generators User’s Guide
Basic Operation
Modulating the Carrier Signal
Modulating the Carrier Signal
To modulate the carrier signal, you must have both
— an active modulation format
and
— modulation of the RF output enabled
Example
1.
Preset the signal generator.
2.
Turn on AM: Press
AM
>
AM Off On
(requires Option UNT).
You can turn on the modulation format before or after setting signal parameters.
The modulation format generates, but does not yet modulate the carrier signal.
Once the signal generates, an annunciator showing the name of the format appears, indicating
that a modulation format is active.
3.
Enable modulation of the RF output: Press the
Mod On/Off
key until the LED lights.
If you enable modulation without an active modulation format, the carrier signal does not
modulate until you subsequently turn on a modulation format.
4.
To make the modulated carrier available at the RF output connector, press the
RF On/Off
key
until the LED lights.
To turn modulation
off
, press the
Mod On/Off
key until the LED turns off.
When the
Mod On/Off
key is off, the carrier signal is not modulated, even
with an active modulation format.
See also:
“Analog Modulation (Option UNT)” on page
“Pulse Modulation (Options UNW and 320)” on page
Annunciator indicates active AM modulation
AM format on
A lit LED indicates that any active
modulation format can modulate
the carrier.
