Jan. 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 0.852 58.6 1:00 0.852 58.6 2:00 0.852 58.6 3:00 0.852 58.6 4:00 0.852 58.6 5:00 0.841 58.5 6:00 0.963 59.7 7:00 1.605 64.1 8:00 0.511 54.2 9:00 0.974 59.8 10:00 1.250 61.9 11:00 1.262 62.0 12:00 1.238 61.9 13:00 1.244 61.9 14:00 1.268 62.1 15:00 1.210 61.7 16:00 0.771 57.7 17:00 0.830 58.4 18:00 1.554 63.8 19:00 0.798 58.0 20:00 0.852 58.6 21:00 0.852 58.6 22:00 0.852 58.6 23:00 0.852 58.6