| Show day Vs nigle reception and effect of sun spots it Is reasonably certain that long wave daylight radio signals nals both from distant stations and from fiona those only two or three thre hundred miles away were ct stronger ronger in 1027 when the eleven year sunspot cycle was near US maximum than in 1923 when it was at Us its minimum according to dr L W austin and miss 1 I J wymore of the bureau of standards op on the other liand hand dr greenleaf Greenlea fW AV rickard tins has chown that to in the broadcasting range signals grow beaher weak er when the number of sunspots sun sun spots increase nence it appears that the effect of solar activity on signals Is 13 reversed when day gives plate place to night might this corresponds ds to tile the conclusions i of the the bellan beir icib b ora oratories that magnetic storms holcli are known to be connected with sun weaken medium and long wave signals at night and slightly st strengthen reng then them in tile the day daytime tile evidence regarding the influence of magnetic storms and solar activity on waves Is somewhat conflicting eatto news |