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-236 Braille pattern dots-236 The Braille pattern dots-236 ( ) is a 6-dot braille cell with the middle left and both bottom dots raised, or an 8-dot braille cell with the upper-middle left and both lower-middle dots raised. It is represented by the Unicode code point U+2826, and in Braille ASCII with the number 8. In unified international braille, the braille pattern dots-236 is used to represent various punctuation, often coupled with Braille pattern dots-356 as an opening mark. Related to Braille pattern dots-236 are Braille patterns 2367, 2368, and 23678, which are used in 8-dot braille systems, such as Gardner-Salinas