Jun. 2023 Niigata-ken Niigata-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 37.90 Longitude of receiver(Degree): 139.02 Distance from Hagane-yama LF station (km): 936 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 0.969 59.7 1:00 0.969 59.7 2:00 0.957 59.6 3:00 0.931 59.4 4:00 1.328 62.5 5:00 1.548 63.8 6:00 0.555 54.9 7:00 1.134 61.1 8:00 1.315 62.4 9:00 1.176 61.4 10:00 0.919 59.3 11:00 0.750 57.5 12:00 0.682 56.7 13:00 0.694 56.8 14:00 0.793 58.0 15:00 0.992 59.9 16:00 1.234 61.8 17:00 1.304 62.3 18:00 0.944 59.5 19:00 0.785 57.9 20:00 1.732 64.8 21:00 1.087 60.7 22:00 0.941 59.5 23:00 0.962 59.7