Dec. 2019 Kumamoto-ken Kumamoto-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 32.78 Longitude of receiver(Degree): 130.73 Distance from Hagane-yama LF station (km): 93 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 13.890 82.9 1:00 13.890 82.9 2:00 13.890 82.9 3:00 13.890 82.9 4:00 13.890 82.9 5:00 13.919 82.9 6:00 15.535 83.8 7:00 14.712 83.4 8:00 14.329 83.1 9:00 14.759 83.4 10:00 14.428 83.2 11:00 14.792 83.4 12:00 14.751 83.4 13:00 14.774 83.4 14:00 14.717 83.4 15:00 14.517 83.2 16:00 14.330 83.1 17:00 15.028 83.5 18:00 15.349 83.7 19:00 14.115 83.0 20:00 13.890 82.9 21:00 13.890 82.9 22:00 13.890 82.9 23:00 13.890 82.9