Jun. 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 7.093 77.0 1:00 7.119 77.0 2:00 7.171 77.1 3:00 6.707 76.5 4:00 6.380 76.1 5:00 6.524 76.3 6:00 7.437 77.4 7:00 8.425 78.5 8:00 7.972 78.0 9:00 7.746 77.8 10:00 7.867 77.9 11:00 7.897 77.9 12:00 7.898 78.0 13:00 7.879 77.9 14:00 7.778 77.8 15:00 7.809 77.9 16:00 8.588 78.7 17:00 6.866 76.7 18:00 7.882 77.9 19:00 8.611 78.7 20:00 7.955 78.0 21:00 7.186 77.1 22:00 7.128 77.1 23:00 7.096 77.0