Jul. 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 0.891 59.0 4:00 0.761 57.6 5:00 0.831 58.4 6:00 0.880 58.9 7:00 0.697 56.9 8:00 0.496 53.9 9:00 0.347 50.8 10:00 0.244 47.7 11:00 0.187 45.4 12:00 0.168 44.5 13:00 0.170 44.6 14:00 0.198 45.9 15:00 0.264 48.4 16:00 0.378 51.5 17:00 0.541 54.7 18:00 0.752 57.5 19:00 0.894 59.0 20:00 0.758 57.6 21:00 0.804 58.1 22:00 0.894 59.0 23:00 0.894 59.0