26 



reports coming in between schedules, and to tlie increase in number 

 and activity of vessels cooperating by sending in water temperatures 

 and weather reports, the radio department was far busier in 1929 than 

 ever before. 



The figures given below indicate how the communication work of 

 1929 compared with that of 1928 which was a good average ice year, 

 and, due to increasing cooperation from passing steamers, the former 

 record vear for total volume of radio traflBc. 



1929 



Routine broadcasts transmitted -_. 



(Broadcasts averaged about 300 words each in 1928 and about 400 each in 1929.) 



Water temperature and weather reports sent in by cooperating vessels. 



Total number of cooperating vessels __ _ 



Number of ice and obstruction reports received by radio 



Total number of words transmitted and received by radio. 



760 

 6,534 



644 

 450, 460 



984 



7,225 



539 



2,255 



807, 737 



The following tabulation shows the times when the most important 

 special ice-patrol traffic schedules were kept. The times given, which 

 are all in Greenwich mean civil times, will doubtless be used during 

 the 1930 season also, though there may be some slight changes nec- 

 essary to make them fit in with prevailing traffic conditions at the 

 various shore stations. 



Time 



0000. 



0030. 



0100. 

 0230. 

 1100. 

 1148. 



1200. 

 1300. 

 2300. 



Remarks 



Radiobroadcast to shipping on 175 kilocycles. 



To Hydrographic Office, Washington, giving latest ice news, followed by 

 report to Weather Bureau, Washington, giving meteorological infor- 

 mation. 



Schedule with naval radio station at Bar Harbor, Me. 



Receive from NAA, near Washington, D. C, traffic on hand for ice patrol. 



Radiobroadcast to shipping on 425 kilocycles. 



Report to Weather Bureau, Washington,, giving meteorological infor- 

 mation. 



Radiobroadcast to shipping on 175 kilocycles. 



Schedule with naval radio station at Bar Harbor, Me^ 



Radiobroadcast to shipping on 425 kilocycles.. 



