Jun. 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 0.889 59.0 4:00 0.749 57.5 5:00 0.851 58.6 6:00 0.875 58.8 7:00 0.687 56.7 8:00 0.489 53.8 9:00 0.343 50.7 10:00 0.241 47.6 11:00 0.184 45.3 12:00 0.166 44.4 13:00 0.168 44.5 14:00 0.195 45.8 15:00 0.260 48.3 16:00 0.372 51.4 17:00 0.533 54.5 18:00 0.742 57.4 19:00 0.892 59.0 20:00 0.775 57.8 21:00 0.790 57.9 22:00 0.893 59.0 23:00 0.894 59.0