Apr. 2018 Kumamoto-ken Kumamoto-shi Expected value of LF field strength Transmitting Station: Ohtakadoya-yama LF station Latitude of receiver(Degree): 32.78 Longitude of receiver(Degree): 130.73 Distance from Ohtakadoya-yama LF station (km): 1051 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 0.977 59.8 1:00 0.977 59.8 2:00 0.977 59.8 3:00 0.977 59.8 4:00 0.778 57.8 5:00 0.505 54.1 6:00 0.922 59.3 7:00 0.979 59.8 8:00 0.872 58.8 9:00 0.746 57.5 10:00 0.620 55.9 11:00 0.552 54.8 12:00 0.544 54.7 13:00 0.598 55.5 14:00 0.706 57.0 15:00 0.840 58.5 16:00 0.957 59.6 17:00 0.969 59.7 18:00 0.652 56.3 19:00 0.649 56.2 20:00 0.977 59.8 21:00 0.977 59.8 22:00 0.977 59.8 23:00 0.977 59.8