摘要
莫尔斯电码是无线电短波通信中用点和划组成的通信语言,电台发送时使用电键,报务员有规律地按下电键发出点划信号,平均点划的长度比例为1:3,电码与电码的间隔时间相同。没有按压电键时,电路处于断路状态;按压连接后,便可发出信号。工作中靠有规律的停顿和按压组成规律的电信号。由于莫尔斯电码所占的频宽少,又具技术和艺术特性,所以在实际生活中应用广泛。
The Morse code is a shortwave radio communication in language communication composed of dots and dashes.Keys are used in sending signals.The key operator regularly presses the key to make a signal,the average length of the cross point of the ratio of 1:3,code and code time interval is the similar,when the keys are not pressed,the key circuit is in the open circuit state.Press can signal after the connection.A regular pauses and pressure can form the regular electrical signals.It has been widely used in real life due to its minimal bandwidth and technical and artistic characteristics.
作者
李福斌
LI Fu-bin(Nanjing Jiangning Higher Vocational and Technical School,Nanjing 211100,China)
出处
《通信电源技术》
2020年第11期80-82,共3页
Telecom Power Technology
