ASS 



BEI.I. SYSTEM rECIIXIC.II. JOl'liX.-IL 



hiyli iiiglit-tiniL- \aliies started to lall <ilT soint- five hours before sun- 

 down in Belfast, the more rapid drop was within some two hours 

 in advance. While these curves are f(^r hut a single clay, they are 

 fairly representative of the average of a greater amount of data. 

 The change in the inclination of the sunset-sunrise curves w'ith the 



KiK. 24 -Krialioii of siinrisc- nIi.kIow wall to noise at Belfast, Maim- I' S —Oct .?0- 

 Nov. 1, 1924 



season of the year effects changes for .American rec» piioii soniewiiat 

 similar to those shown for reception in ICngland, excei)t that for the 

 summer months (he coincidem-c is less delinite. It may he that this 

 is Ix-cause of the somewhat lower latitude of llic InitedStates terminal 

 and (»f the reception of a greater propoiiimi of iho static from the 

 Xorlli .Amcric.in conlincnl. 



