UNI-T UTG9504T User Manual page 56

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 FSK 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 frequency
when the external input is low; output hopping frequency when the external input is high.
Hopping frequency settings
The default hopping frequency is 10kHz. Rotate multifunction knob, push direction key or tap HopFreq1 tab to pop-out visual
numeric keyboard to enter values and select unit in FSK modulation setting interface. The range of hopping frequency
depends on carrier waveform. Refer to
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 FSK modulation mode to set the frequency, the range is between 1μHz~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.
Tabe 4-1/4-2 of AM modulation.
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UTG9000T Series Function Abitrary Waveform Generator