Morse code is 60 milliseconds. Using the word CODEX with 60 dot units, the dot length at 20 words per minute is 50 milliseconds. Because Morse code is usually sent by hand, it is unlikely that an operator could be that precise with the dot length, and the individual characteristics and preferences of the operators usually override the standards. For commercial radiotelegraph licenses in the United States, the Federal Communications Commission specifies tests for Morse code proficiency in words per minute and in code groups per minute. The Commission specifies that a word is 5 characters long. The Commission specifies Morse code
Braille pattern dots-125 Braille pattern dots-125 The Braille pattern dots-125 ( ) is a 6-dot braille cell with the top left and both middle dots raised, or an 8-dot braille cell with the top left and both upper-middle dots raised. It is represented by the Unicode code point U+2813, and in Braille ASCII with H. In unified international braille, the braille pattern dots-125 is used to represent guttural fricatives and approximants, such as /h/, /ħ/, or /ɦ/, and is otherwise assigned as needed. It is also used for the number 8. Related to Braille pattern dots-125 are Braille patterns 1257, 1258, and 12578,