2FSK仿真演示系统，可以任意输入码字序列，和载波频率，动态产生调制波形。可以清楚的看到整个调制解调过程的时域及频域的波形。-Simulation demo system 2FSK, can enter the code word sequence, and the carrier frequency, modulation waveform is dynamically generated. Can clearly see the time domain and frequency domain waveforms of the modulation and demodulation process.