Name: UNI-T UTG2122B
Brand: UNI-T
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UTG2000B Series 85

Figure 3 -19 Observe QAM waveform with oscilloscope

3.1.13 Pulse Width Modulation (PWM)

In PWM, modulated waveform generally is composed of carrier wave and modulation wave. The

pulse width of carrier wave will vary with the amplitude of modulation wave. The modulation mode

of the two channels is mutually independent. You can configure same or different modulation mode

for channel 1 and 2.

Select PWM

Press Menu → Mod → Type →

PMW successively to use PWM function (if Type is not

highlighted, it may be necessary to press soft key Type twice to display the next screen of sub-tags).

After PWM function is used, UTG2000B function/arbitrary waveform generator will output

modulated waveform with the current modulation waveform and carrier wave.

Figure 3 - 20 Select PWM function

Carrier waveform

PWM carrier waveform can only be pulse wave. After PWM is selected, press Carrier to enter

interface of carrier waveform. You can see the Pulse Wave is automatically selected.

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UNI-T UTG2122B Specifications

General