SAFETY OF LIFE AT SEA C139 



(/) The receiver shall be capable of receiving the radiotelegraph distress 

 frequency and the classes of emission assigned by the Radio Regulations for 

 that frequency. 



(g) The source of energy shall consist of an accumulator battery with 

 sufficient capacity to supply the transmitter for four hours continuously under 

 normal working conditions. If the battery is of a type that requires charging, 

 means shall be available for charging it from the ship's power supply. In 

 addition there shall be a means for charging it after the lifeboat has been 

 launched. 



(/?) When the power for the radiotelegraph installation and the search- 

 light required by Regulation 14 of Chapter III are drawn from the same 

 battery, it shall have sufficient capacity to provide for the additional load of 

 the searchlight. 



(0 A fixed-type aerial shall be provided together with means for supporting 

 it at the maximum practicable height. In addition an aerial supported by a 

 kite or balloon shall be provided if practicable. 



0) At sea a radio officer shall at weekly intervals test the transmitter 

 using a suitable artificial aerial, and shall bring the battery up to full charge 

 if it is of a type which requires charging. 



Regulation 13 



Portable Radio Apparatus for Survival Craft 



{a) The apparatus required by Regulation 1 3 of Chapter III shall include 

 a transmitter, a receiver, an aerial and a source of energy. It shall be so 

 designed that it can be used in an emergency by an unskilled person. 



(b) The apparatus shall be readily portable, watertight, capable of floating 

 in sea water and capable of being dropped into the sea without damage. 

 New equipment shall be as light-weight and compact as practicable and shall 

 preferably be capable of use in both lifeboats and liferafts. 



(c) The transmitter shall be capable of transmitting on the radiotelegraph 

 distress frequency using a class of emission assigned by the Radio Regulations 

 for that frequency, and, in the bands between 4,000 kc/s and 27,500 kc/s, of 

 transmitting on the radiotelegraph frequency, and of using a class of emission, 

 assigned by the Radio Regulations for survival craft. However, the Admini- 

 stration may permit the transmitter to be capable of transmitting on the 

 radiotelephone distress frequency, and of using the class of emission, 

 assigned by the Radio Regulations for that frequency, as an alternative or 

 in addition to transmission on the radiotelegraph frequency assigned by the 

 Radio Regulations for survival craft in the bands between 4,000 kc/s 

 and 27,500 kc/s. 



Ch. 4 



