Page:United States Statutes at Large Volume 63 Part 2.djvu/604

 63 STAT.1 MI'LTILATERAL-TELECO(IMMUNICATIONS-OCT. 2, 1947 (Chapter XIV, art. 37 RR) (872-878) to stations of the maritime mobile service, the frequencies to be used shall be the international distress frequency 500 kc/s or other watchkeeping frequencies of these stations. Section III. Distress Signal 872 § 6. (1) In radiotelegraphy, the distress signal consists of the group ... . --- . transmitted as a single signal in which the dashes must be emphasized so as to be distinguished clearly from the dots. 873 (2) In radiotelephony, the distress signal consists of the word MAYDAY pronounced as the French expression "m'aider". 874 §7. These distress signals indicate that the ship, air- craft, or other vehicle sending the distress signal is threatened by grave and imminent danger and requests immediate assis- tance. Section IV. Distress Call 875 §8. The distress call and message are sent only on the authority of the master or person responsible for the ship, aircraft or other vehicle carrying the mobile station. 876 § 9. (1) The distress call, when sent by radiotelegraphy on 500 kc/s is, as a general rule, preceded by the alarm signal as defined in 920. 877 (2) When circumstances permit, the transmission of the call is separated from the end of the alarm signal by an interval of two minutes. In this case, the alarm signal must be followed immediately by the distress signal .. --. .. sent three times, in order to operate the auto- matic apparatus mentioned in 931. 878 § 10. The distress call sent by radiotelegraphy comprises: - the distress signal transmitted three times; - the word DE; 1901

�