114 METHODS OF COMMUNICATION FOR FORE 1ST PROTECTION 



This capacity for very long distance transmission over poorly insulated or even 

 broken lines makes it feasible to consider the set as a possible auxiliary communication 

 device for sending telegraph messages, even when the lines will not carry telephone 

 messages. This buzzer telegraphy is the most common method employed for military 

 communication over field cable and other insulated- wire lines laid on the ground. 

 The International Morse code is used and dots and dashes are represented by short 

 and long buzzes. The Adams hand set would require some modification if used in 

 this way to' any considerable extent, but there are possibilities for utilizing it in 

 emergencies wherever the protection forces have the requisite training and organization. 



It is also to be noted that the buzzer signals of this set may foe transmitted 

 simultaneously with ordinary Morse signals over one wire (see 'Section 78). 



Section 82 Emergency Communication Kits 

 1 USE IN FOREST PROTECTION 



It frequently happens that temporary telephone stations must be established in 

 the field, as at fire-camps and other camps where messages must be received as well 

 as sent. The Adams hand set alone cannot receive a call, while the sound of the 



Fig-. 67 Forestry Branch emergency communication kit No. 1-A 



buzzer in the Forestry Branch portable telephone is inaudible at a few yards. 

 Either a howler or an extension bell must be provided where signals are to be received. 

 Communication kits comprising the necessary instruments for two stations with 

 emergency wire and tools for stringing it, all packed into suitable cases for pack or 

 wagon transport, are employed by certain protective organizations. A somewhat 

 similar kit comprising the instruments above mentioned has been devised for Forestry 

 Branch use. It is only necessary to add a case of emergency wire and a reel to this kit 

 to have a full emergency outfit. 



