Morse code and interword gaps may be lengthened so the word rate is only 5 words per minute. Using different character and text speeds is, in fact, a common practice, and is used in the Farnsworth method of learning Morse code. Some methods of teaching Morse code use a dichotomic search table. Morse Code cannot be treated as a classical radioteletype (RTTY) signal when it comes to calculating a link margin or a link budget for the simple reason of it possessing variable length dots and dashes as well as variant timing between letters and words. For the purposes of Information Theory
Braille pattern dots-2356 Braille pattern dots-2356 The Braille pattern dots-2356 ( ) is a 6-dot braille cell with both middle and both bottom dots raised, or an 8-dot braille cell with both upper-middle and both lower-middle dots raised. It is represented by the Unicode code point U+2836, and in Braille ASCII with the number 7. In unified international braille, the braille pattern dots-2356 is used for punctuation, or otherwise as needed. Related to Braille pattern dots-2356 are Braille patterns 23567, 23568, and 235678, which are used in 8-dot braille systems, such as Gardner-Salinas and Luxembourgish Braille. In the Japanese kantenji braille, the standard