Sep. 2023 Tochigi-ken Utsunomiya-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 36.55 Longitude of receiver(Degree): 139.88 Distance from Hagane-yama LF station (km): 946 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 1.017 60.1 1:00 1.017 60.1 2:00 1.017 60.1 3:00 1.017 60.1 4:00 1.003 60.0 5:00 1.170 61.4 6:00 1.559 63.9 7:00 0.590 55.4 8:00 1.228 61.8 9:00 1.306 62.3 10:00 1.145 61.2 11:00 0.943 59.5 12:00 0.852 58.6 13:00 0.870 58.8 14:00 0.999 60.0 15:00 1.203 61.6 16:00 1.320 62.4 17:00 1.071 60.6 18:00 0.694 56.8 19:00 1.703 64.6 20:00 0.971 59.7 21:00 1.016 60.1 22:00 1.017 60.1 23:00 1.017 60.1