morse typewriter

A morse signal, of course, consists of dots and dashes. The duration of dots, dashes, and the spaces between them bear fixed time relationships to one another. Starting with the dot as a basis, a dash has a duration of three dots. The space between dots and dashes has a duration of one dot, that between com-plete letters three dots, and the space between words has a duration equal to six dots. On this basis it is easy to work out a time scale for the duration of each letter of the alphabet, in morse. This is shown in table 1. One cross represents a dot, and a row of three crosses, a dash. The longest duration letters are J ,Q and Y, which have a duration of 13 dots, including spaces. For simplicity, punc-tation marks and numerals have been omitted from the basic design, but they may easily be added if required.