Command system EN Instructions None Return format POSitive or NEGative. Example SOURce1:MOD:ASKey:POLarity NEGative /* Set the modulation polarity of channel 1ASK to negative*/ 3.4 BPSK subsystem The BPSK subsystem enables you to modulate waveforms via Binary Phase Shift Keying (BPSK), a digital modulation format. In BPSK, the carrier waveform moves the phase between two phase settings using the ON/OFF keys. It can be an internal source, using a square wave at a specified frequency, or an external source, using an external trigger input. 3.4.1 SOURce :MOD:BPSKey:INTernal:RATE Command format SOURce :MOD:BPSKey:INTernal:RATE |MINimum|MAXimum SOURce :MOD:BPSKey:INTernal:RATE?
[MINimum|MAXimum] Function description Set the rate at which the output phase "moves" between the carrier and offset phase. Argument Instructions The internal modulated waveform is a square wave with a duty period of 50%. Return format Return as a scientific count. Example SOURce1:MOD:BPSKey:INTernal:RATE 200 /* set the modulation rate for HDG300C Programming manual Copyright © Qingdao Hantek Electronics Co., LTD 14 Name Range Default value POLarity POSitive|NEGative POSitive Name Range Default value RATE 2 mHz to 1 MHz 100Hz