DEPARTMENT OF COMMERCE. RADIO SERVICE. INTERNATIONAL MORSE CODE AND CONVENTIONAL SIGNALS. [To be used for all general public service radio communication. (1) A dash is equal to three dots; (2) the space between parts of the same letter is equal to one dot; (3) the space between two letters is equal to three dots; (4) the space between two words is equal to five dots.] INDEX. NOTE.-In the first column are given the subjects and phrases in alphabetical order. In the second column |