UNI-T UTG9000T Series, Руководство пользователя

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UTG9000T Series Function Abitrary Waveform Generator
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or tap ModSrc tab to step through internal or external modulation source in DSB-AM modulation setting
interface.
1)
Internal source
When the modulation source is internal, the modulation waveform can be sine, square, rising
ramp, falling ramp arbitrary and noise wave. The default wave is sine wave. When turn on
DSB-AM modulation, ModWave present Sine, rotate multifunction knob or tap word Sine to select
the waveform in modulation setting interface.

Square wave: duty ratio 50%

Rising ramp wave: symmetry 100%

Falling ramp wave: symmetry 0%

Arbitrary wave: the length of arbitrary wave limit at 2kpts by the method of select point
automatically

Noise wave: white gaussian noise
2)
External source
When the modulation source is external, the modulation wave and frequence will be hidden in
parameter list. Use the external waveform to modulating the carrier wave. The DSB-AM depth is
controlled by the ±5V signal level on the external analog modulation input terminal (Modulation In
connector) on the back panel. For example, if set the modulation depth to 100%, the output of
DSB-AM amplitude is maximum when the external modulation signal is +5V; the output of
DSB-AM amplitude is minimum when the external modulation signal is -5V.
Modulation waveform frequency settings
When the modulation source is internal, it can set the modulation waveform frequency, and the
frequency range is between 1uHz~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