International Morse code is composed of five elements:[1]: §3
short mark, dot or dit ( ▄ ): "dit duration" is one time unit long
long mark, dash or dah ( ▄▄▄ ): three time units long
inter-element gap between the dits and dahs within a character: one dot duration or one unit long
short gap (between letters): three time units long
medium gap (between words): seven time units long (formerly five[6])
https://en.wikipedia.org/wiki/Morse_code
International Morse code is composed of five elements:[1]: §3
short mark, dot or dit ( ▄ ): "dit duration" is one time unit long long mark, dash or dah ( ▄▄▄ ): three time units long inter-element gap between the dits and dahs within a character: one dot duration or one unit long short gap (between letters): three time units long medium gap (between words): seven time units long (formerly five[6])