Modulation EN Figure 8.1 OSK Modulation 8.12.1 Select OSK Modulation Press [Mod] > Type > OSK softkey to enable OSK function. ⚫ When Mod is enabled, Sweep or Burst will be disabled automatically. ⚫ After OSK is enabled, the instrument will generate OSK waveform with the currently specified carrier and modulating waveforms. To avoid multiple waveform changes, enable modulation after configuring the other modulation parameters. 8.12.2 Carrier Waveform Shape OSK carrier waveform can only be sine waveform. Press [Wave] > Sine softkey on the front panel to select. 8.12.3 Carrier Waveform Frequency For different carrier waveforms, the settable range of carrier frequency is different.
Please refer to "Frequency Characteristics" in Specifications. The default value is 1kHz. Press [Setting] > Frequency softkey on the front panel, and then use the numeric keypad or direction keys and knob to input the desired frequency value. 8.12.4 Modulation Source Press [Mod] > Source softkey to select Internal (default) or External as the modulation source. internal Source When internal modulation source is selected, the modulating waveform is set as a Square with 50% duty cycle, and the intermittence time and oscillate time of the output HDG3000B User manual Copyright © Qingdao Hantek Electronics Co., LTD 54