UNI-T UTG9000T Series, User Manual

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UTG9000T Series Function Abitrary Waveform Generator
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1) Internal source
When the modulation source is internal, the modulation wave is a square sine with duty ratio
50% (buit-in and can’t adjustable). It can select shift frequency between the carrier wave
frequency and hopping frequency by the frequency settings.
2) External source
When the modulation source is external, rate will be hidden in paramteter list. Use the
external waveform to modulating the carrier wave. The PSK frequency output is controlled by
logical level on the external digital modulation terminal (FSK Trig connector) on the back
panel.For example, output the current carrier phase when the external input is low; output
hopping phase when the external input is high.
Modulation waveform frequency settings
When the modulation source is internal, it can select shift frequency between the carrier wave
frequency and hopping frequency. Turn on PSK modulation mode to set the frequency, the range
is between 1uHz~2MHz, default 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.
Modulating phase settings
PSK modulation mode presents the changes between the modulated wave phase and the carrier
wave phase. The phase range can set to 0º
~
360º, the default phase is 180º. Rotate multifunction
knob, push direction key or tap Phasetab to pop-out visual numeric keyboard to enter values and
select unit in PSK modulation setting interface.
Comperhensive example
In PSK modulation mode, set an internal 2kHz, 2Vpp sine wave as a carrier wave, set the
frequency 1kHz to shift between the modulating phase 180°and the carrier wave, the settings