498 



BEU. sySTEM rr.CIIXlCAL JoriiXAL 



Monthly Averages Diurnal Variation of Signal Field Strength 



Xortholt, England (GKB) Measured at Riverhead, L. 1. 



5,460 Km. 52,000 Cycles 



1924 



I. 



^! 





1 1 1 1 i.i 



LilU 



Uii 



Monthly Average of Diurnal Variation of Signal Field Strength 



I.eafield, Fngland (CiBL) Measured at dreen Harbor, Mass. 



C'orrci-ted to 300 Am|)cres Antenna Current 



5,1.50 Km. 24,050 Cycles 



July, 1023 -I;in,. ]')24 



