cellonics is nothing but the modem. It is used for long distance communication. Then the modem is 1000 times faster than the normal modem.

task report for power dividers

基于matlab的傅里叶频谱分析实验报告，可作为信号系统和通信原理的实验参考。-Based on matlab Fourier spectrum analysis experimental report, can be used as a signal system and communication principle of experimental reference