Agilent Technologies 33120A Welding System User Manual


 
To output a modulated waveform
A modulated waveform consists of a carrier and a modulating waveform.
In
AM (amplitude modulation), the amplitude of the carrier is varied by
the amplitude of the modulating waveform. For this example, you will
output an AM waveform with 80% modulation depth. The carrier will be a
5 kHz sine wave and the modulating waveform will be a 200 Hz sine wave.
1 Select the function, frequency, and amplitude of the carrier.
For the carrier waveform, you can select a sine, square, triangle, ramp,
or arbitrary waveform. For this example, select a
5 kHz sine wave with
an amplitude of
5 Vpp.
Shift AM 2Select AM.
Notice that the
AM annunciator turns on.
Shift 3 Use the menu to select the shape of the modulating waveform.
< Recall Menu After you enable the AM function, the “recall menu” key will
automatically take you to the
AM SHAPE command in the MOD MENU.
1: AM SHAPE
3
Chapter 3 Front-Panel Menu Operation
To output a modulated waveform
45