Apr. 2022 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 1.364 62.7 1:00 1.364 62.7 2:00 1.364 62.7 3:00 1.364 62.7 4:00 1.337 62.5 5:00 1.399 62.9 6:00 0.558 54.9 7:00 1.054 60.5 8:00 1.107 60.9 9:00 0.883 58.9 10:00 0.634 56.0 11:00 0.453 53.1 12:00 0.378 51.6 13:00 0.392 51.9 14:00 0.497 53.9 15:00 0.721 57.2 16:00 0.962 59.7 17:00 1.147 61.2 18:00 0.895 59.0 19:00 0.766 57.7 20:00 1.428 63.1 21:00 1.347 62.6 22:00 1.364 62.7 23:00 1.364 62.7