INTERNATIONAL CONVENTION SAFETY OF LIFE AT SEA. 245 



Article II. 



SAFETY SIGNAL. 



The radiotelegraph stations which have to transmit to ships information involving 

 safety of navigation and being of an urgent character (icebergs, derelicts, cyclones, ty- 

 phoons, sudden changes in the position or form of fixed obstructions or of landmarks) 

 shall make use of the following signal, called the safety signal, repeated at short intervals 10 

 times at full power : 



^ — (t T t) 



In principle, all radiotelegraph stations receiving the safety signal, shall, if the trans- 

 mission of messages by them would interfere with the receipt by any other station of the 

 safety signal and the following safety message, keep silence, in order to allow all inter- 

 ested stations to receive that message. This does not apply to cases of distress. 



The safety message shall be transmitted one minute after the safety signal has been sent 

 out, and shall be repeated thereafter three times at intervals of 10 minutes. 



The Governments of the Contracting States will select the stations which are to send 

 out to mariners safety information of an urgent character. 



When the information in question has been sent out by stations performing the time 

 service, it shall be again sent out after the transmission of the time signal and the weather 

 report. 



Article III. 



morse code. 



international signals. 



These signals may be made at night or in thick weather, either by long and short 

 flashes of light, or by long and short sound signals (whistles, fog horns, etc.), or during 

 the day by haul flags. 



I. Urgent and important signals. 



You are standing into danger 



I want assistance ; remain by me 



Have encountered ice 



Your lights are out ( or, burning badly) 



The way is off my ship ; you may feel your way past me 



Stop {or, heave to) ; I have something important to communicate 



Am disabled ; communicate with me 



