SOS was introduced for emergency maritime radio communication using Morse code. Radio (initially known as "wireless telegraphy") was developed in the late 1890s, and was quickly recognized as an important aid to maritime communication.

SOS is the international Morse code distress signal and is three dots, three dashes, and three dots. It is not the same signal as actually sending the letters "SOS" and is not an acronym for anything. You can send SOS using sound (by radio, a whistle or tapping), by light, or even writing it …

sos即S.O.S，是国际 摩尔斯电码 救难信号，并非任何单词的缩写，特点是三短三长三短。 Many people think that SOS means "save our soul", but actually SOS is the commonly used description for the international Morse code distress signal (...---...).

Not just wireless telegraph operators, even the average person can now use Morse code for SOS either verbally or in writing to indicate that they are in a dangerous situation and urgently need help. Since SOS has become such a vital distress signal, remembering its simple Morse code pattern - three dots, three dashes, and three dots ...

SOS (· · · — — — · · ·) is a Morse code. It is used as distress code, to signal danger. It was introduced by the German government in radio regulations on April 1, 1905. It became the worldwide standard when it was included in the second International Radiotelegraphic Convention, which was signed on November 3, 1906.

摩尔斯电码（又译为摩斯密码，Morse code）是一种时通时断的信号代码，通过不同的排列顺序来表达不同的英文字母、数字和标点符号。 它发明于1837年，发明者有争议，是美国人塞缪尔·莫尔斯或者艾尔菲德·维尔。

sos是世界上最重要和最广泛认可的求救信号之一。让我们来看看这个重要信号是如何转换成摩尔斯电码的。单词'sos'由三个字母组成：s、o和s。在摩尔斯电码中，字母's'由三个点(...)表示，而字母'o'由三个划线(---)表示。

Discover our easy-to-use SOS Morse Code Translator, perfect for converting SOS to Morse and vice versa. Not just a translation tool, it also plays the distinct sound pattern of SOS in Morse Code. Ideal for learning, practice, and understanding this vital emergency signal.

要在摩斯密码中表示sos，你可以通过多种方式发出信号。最常见的方法是敲击（如在表面上）、闪光（如手电筒）或使用声音（如喇叭或哨子）。在所有情况下，sos的摩斯密码都是一样的：...

Use our morse code decoder/encoder to get SOS in morse code. You can also convert from morse to English text. as well as adjust the speed and volume hear its sound.