Oct. 2023 Hokkaido Sapporo-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 43.05 Longitude of receiver(Degree): 141.35 Distance from Hagane-yama LF station (km): 1440 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 0.894 59.0 1:00 0.894 59.0 2:00 0.894 59.0 3:00 0.894 59.0 4:00 0.894 59.0 5:00 0.894 59.0 6:00 0.734 57.3 7:00 0.888 59.0 8:00 0.811 58.2 9:00 0.608 55.7 10:00 0.463 53.3 11:00 0.375 51.5 12:00 0.343 50.7 13:00 0.347 50.8 14:00 0.392 51.9 15:00 0.492 53.8 16:00 0.659 56.4 17:00 0.860 58.7 18:00 0.862 58.7 19:00 0.782 57.9 20:00 0.894 59.0 21:00 0.894 59.0 22:00 0.894 59.0 23:00 0.894 59.0