UNI-T UTG9504T User Manual page 87

UTG9000T Series Function Abitrary Waveform Generator
Modulation waveform frequency settings
When the modulation source is internal, it can set the modulation waveform frequency, and the frequency range is
between 1μHz~2MHz, the default range is 100Hz. Rotate multifunction knob, push direction key or tap ModFreq tab
to pop-out visual numeric keyboard to enter values and select unit in modulation setting interface. When the
modulation source is external, the modulation wave and frequence will be hidden in parameter list. Use the external
waveform to modulating the modulation wave. The intput external modulating signal frequency range is between
0Hz~50kHz.
Modulation depth settings
Modulation depth indicates the change of the extent of amplitude, use percentage to express. SUM modulation depth
range can set between 0%~100%, the default range is 100%. If the modulation depth is 0%, then output the carrier
wave; if the modulation depth is 100%, output the modulated wave. Rotate multifunction knob and direction key or
tap ModDepth tab to pop-out visual numeric keyboard to enter values. When the modulation source is external, the
output amplitude is controlled by the ±5V signal level on the external analog modulation input terminal (Modulation In
connector) on the back panel.
Comprehensive example
In SUM modulation mode, set an internal 1kHz sine wave as the modulating signal, another square sine with frequency 2kHz,
amplitude200mVpp, duty ratio 45% as the carrier wave signal, and set the modulation depth to 80%, the settings steps as
following,
1）Turn on SUM modulation mode: tap CH1→Modulate→SUM accordingly.
2）Set the parameter of the carrier wave signal
Tap Base to select Square as the carrier waveform (the default option is sine wave).
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