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
Russian Morse code Russian Morse code The Russian Morse code approximates the Morse code for the Latin alphabet. It was enacted by the Russian government in 1856. To memorize the codes, mnemonics are used, called "melodies" (напевы). A "melody" for a morse code for a character is a phrase which is sung (hence the name): the syllables with vowels а, о, ы correspond to dashes and sung long, the other syllables and the syllable "ай" correspond to dots and sung short. The "melodies" differ among various schools. The correspondence between the Cyrillic and Latin letters was later passed on into MTK-2 and subsequently