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ＩＴＵ－Ｒ５６０－３建议的修正案长波、中波和短波广播的射频保护率对１＊ｒＲ５６０－３附录皿“同步广播发射机的射频保护车”增加下列内容：“１０．７在中国从事的研究中国从６０年代末开始中波同步广播的试验和研究。相位同步方法存有随传输的标频信号的随机干扰和...
Recommendation ITU-R 560-3 RF protection rates for long-wave, medium-wave and short-wave broadcasts Add the following to the 1RR560-3 Appendix A radio-frequency protected car for synchronous broadcast transmitters: 10.7 The following Research China from the late 60s began the experiment and study of the Chinese wave synchronization broadcast.Phase synchronization method exists with the transmission of the standard frequency signal of random interference and ...