Command system EN Instructions None Return format POSitive or NEGative. Example SOURce1:MOD:PSKey:POLarity NEGative /* Set the modulation polarity of channel 1ASK to negative polarity */ 3.21 PWM subsystem The PWM subsystem enables you to perform pulse width modulation (PWM) on the pulse waveform. 3.21.1 SOURce :MOD:PWM:DEViation Command format SOURce :MOD:PWM:DEViation |MINimum|MAXimum SOURce :MOD:PWM:DEViation? [MINimum|MAXimum] Function description Set pulse width deviation. Relative to the pulse width of the carrier pulse waveform ± deviation (in seconds). Argument Instructions ⚫ The pulse width deviation must not exceed the current pulse width.
⚫ The pulse-width deviation is limited by the minimum pulse width and the current edge time setting. Return format + 1.000000000000000E+00. Example SOURce1:MOD:PWM:DEViation 1/* Set the pulse-width deviation of channel 1 to 1s */ Copyright © Qingdao Hantek Electronics Co., LTD HDG300C Programming manual 53 Name Range Default value POLarity POSitive|NEGative POSitive Name Range Default value 0 ns to 500 ks 200μs