Oct. 2021 Ibaraki-ken Mito-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 36.33 Longitude of receiver(Degree): 140.45 Distance from Hagane-yama LF station (km): 987 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 1.131 61.1 1:00 1.131 61.1 2:00 1.131 61.1 3:00 1.131 61.1 4:00 1.131 61.1 5:00 1.094 60.8 6:00 1.530 63.7 7:00 0.563 55.0 8:00 1.024 60.2 9:00 1.207 61.6 10:00 1.088 60.7 11:00 0.951 59.6 12:00 0.866 58.7 13:00 0.886 59.0 14:00 0.991 59.9 15:00 1.138 61.1 16:00 1.208 61.6 17:00 0.808 58.2 18:00 0.856 58.7 19:00 1.413 63.0 20:00 1.111 60.9 21:00 1.131 61.1 22:00 1.131 61.1 23:00 1.131 61.1