Mar. 2023 Niigata-ken Niigata-shi Expected value of LF field strength Transmitting Station: Ohtakadoya-yama LF station Latitude of receiver(Degree): 37.90 Longitude of receiver(Degree): 139.02 Distance from Ohtakadoya-yama LF station (km): 172 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 3.686 71.3 1:00 3.686 71.3 2:00 3.686 71.3 3:00 3.686 71.3 4:00 3.920 71.9 5:00 6.785 76.6 6:00 5.590 74.9 7:00 6.962 76.9 8:00 4.655 73.4 9:00 6.189 75.8 10:00 6.113 75.7 11:00 5.829 75.3 12:00 5.804 75.3 13:00 6.030 75.6 14:00 6.251 75.9 15:00 5.088 74.1 16:00 6.194 75.8 17:00 4.021 72.1 18:00 4.438 72.9 19:00 4.022 72.1 20:00 3.710 71.4 21:00 3.686 71.3 22:00 3.686 71.3 23:00 3.686 71.3