Apr. 2022 Hokkaido Wakkanai-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 45.40 Longitude of receiver(Degree): 141.67 Distance from Hagane-yama LF station (km): 1647 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 0.641 56.1 1:00 0.641 56.1 2:00 0.641 56.1 3:00 0.641 56.1 4:00 0.639 56.1 5:00 0.589 55.4 6:00 0.661 56.4 7:00 0.550 54.8 8:00 0.400 52.0 9:00 0.307 49.7 10:00 0.261 48.3 11:00 0.216 46.7 12:00 0.197 45.9 13:00 0.200 46.0 14:00 0.223 47.0 15:00 0.275 48.8 16:00 0.321 50.1 17:00 0.431 52.7 18:00 0.587 55.4 19:00 0.663 56.4 20:00 0.593 55.5 21:00 0.641 56.1 22:00 0.641 56.1 23:00 0.641 56.1