Oct. 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 1.017 60.1 5:00 0.984 59.9 6:00 1.615 64.2 7:00 0.889 59.0 8:00 0.956 59.6 9:00 1.321 62.4 10:00 1.279 62.1 11:00 1.153 61.2 12:00 1.069 60.6 13:00 1.090 60.8 14:00 1.192 61.5 15:00 1.317 62.4 16:00 1.271 62.1 17:00 0.697 56.9 18:00 1.271 62.1 19:00 1.316 62.4 20:00 0.999 60.0 21:00 1.017 60.1 22:00 1.017 60.1 23:00 1.017 60.1