Braille pattern dots-26 Braille pattern dots-26 The Braille pattern dots-26 ( ) is a 6-dot braille cell with the middle left and bottom right dots raised, or an 8-dot braille cell with the upper-middle left and lower-middle right dots raised. It is represented by the Unicode code point U+2822, and in Braille ASCII with the number 5. In unified international braille, the braille pattern dots-26 is used to represent an unrounded open-mid to close-mid front vowel , such as /e/, /e̞/, or /ɛ/ when multiple letters correspond to these values, a question mark, or is otherwise assigned as needed. Related to Braille pattern
American Morse code a type of distortion called dispersion that gets progressively worse with the length of the cable. Dispersion severely limits the rate that Morse can be sent because of intersymbol interference. For instance, the first transatlantic telegraph cable of 1858 could only sustain a transmission rate of less than 1 word per minute. This interference is worse with American Morse because it has a greater proportion of closely spaced dots than the Gerke code. The Gerke code was adopted as a standard for transmission over cables by the Austro-German Telegraph Union (which included many central European states) at a conference in