Nov. 2023 Yamagata-ken Yamagata-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 38.23 Longitude of receiver(Degree): 140.37 Distance from Hagane-yama LF station (km): 1058 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 1.471 63.4 1:00 1.471 63.4 2:00 1.471 63.4 3:00 1.471 63.4 4:00 1.471 63.4 5:00 1.463 63.3 6:00 1.517 63.6 7:00 0.933 59.4 8:00 0.934 59.4 9:00 1.241 61.9 10:00 1.152 61.2 11:00 1.015 60.1 12:00 0.932 59.4 13:00 0.948 59.5 14:00 1.054 60.5 15:00 1.196 61.6 16:00 1.211 61.7 17:00 0.736 57.3 18:00 1.320 62.4 19:00 1.440 63.2 20:00 1.471 63.4 21:00 1.471 63.4 22:00 1.471 63.4 23:00 1.471 63.4