77<r. /.v.v. ///„/. V//C' N.inio iiu.r.riioxn ikaxsmissiom ax? 



Tlu- tlata ohtaiiicil in the rniled Status iiidirate that generally 

 similar conditions i-xist thrrc as to the relation heivveen sunset and 

 sunrise path and the major rise and fall of static. This relationship 

 is shown in l-ij;. 2:5, which allows in llic upper h ilf tiie course of tiie 



Kig. 23 — Relation of sunset shadow wall to noise at Belfast, Maine, U. S. — Oct. 30 — 

 Nov. 1, 1924 



night-time belt as it proceeds from Europe to America and the corre- 

 sponding rise in the static noise. The noise level curves are the 

 same as those shown in Fig. 14 for reception at Belfast, Maine. The 

 rise commences about one hour before and continues for one hour 

 or so after sundown. This is for the fall season of the year. A 

 similar chart for the sunrise conditions is given in Fig. 24. Although 



