Command system EN For example, SOURce1:MOD:QPSKey:PHASe1 90 /* Set modulation phase 1 to 90 degrees during channel 1 QPSK modulation*/ 3.22.3 SOURce :MOD:QPSKey:DATA Command format SOURce :MOD:QPSKey:DATA PN15|PN21 SOURce :MOD:QPSKey:DATA? Function description Select the data of the BPSK modulated wave. Argument Instructions None Return format PN15 or PN21. Example SOURce1:MOD:QPSKey:DATA PN21 /* Set the data for channel 1 QPSK modulation to PN21*/ 3.23 ROSCillator subsystem The ROSCillator subsystem controls the use of the 10 MHz reference oscillator and the input of thr external reference oscillator. The reference oscillator is the master clock for all waveform synthesis.
All waveforms are phase-locked to the reference oscillator, thus controlling the output signal frequency and phase. 3.23.1 SYSTem:ROSCillator:SOURce Command format SYSTem:ROSCillator:SOURce INTernal|EXTernal SYSTem:ROSCillator:SOURce? Copyright © Qingdao Hantek Electronics Co., LTD HDG300C Programming manual 57 Name Range Default value DATA PN15|PN21 PN15