Mar. 2023 Tochigi-ken Utsunomiya-shi Expected value of LF field strength Transmitting Station: Ohtakadoya-yama LF station Latitude of receiver(Degree): 36.55 Longitude of receiver(Degree): 139.88 Distance from Ohtakadoya-yama LF station (km): 126 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 7.091 77.0 1:00 7.091 77.0 2:00 7.091 77.0 3:00 7.091 77.0 4:00 7.179 77.1 5:00 9.398 79.5 6:00 7.597 77.6 7:00 8.237 78.3 8:00 8.198 78.3 9:00 8.231 78.3 10:00 7.640 77.7 11:00 7.682 77.7 12:00 7.693 77.7 13:00 7.635 77.7 14:00 8.024 78.1 15:00 8.544 78.6 16:00 7.170 77.1 17:00 6.480 76.2 18:00 7.802 77.8 19:00 7.198 77.1 20:00 7.097 77.0 21:00 7.091 77.0 22:00 7.091 77.0 23:00 7.091 77.0