Jan. 2014 Niigata-ken Niigata-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 37.90 Longitude of receiver(Degree): 139.02 Distance from Hagane-yama LF station (km): 936 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 0.969 59.7 1:00 0.969 59.7 2:00 0.969 59.7 3:00 0.969 59.7 4:00 0.969 59.7 5:00 0.962 59.7 6:00 1.028 60.2 7:00 1.725 64.7 8:00 0.628 56.0 9:00 1.048 60.4 10:00 1.338 62.5 11:00 1.355 62.6 12:00 1.332 62.5 13:00 1.338 62.5 14:00 1.360 62.7 15:00 1.293 62.2 16:00 0.843 58.5 17:00 0.954 59.6 18:00 1.644 64.3 19:00 0.929 59.4 20:00 0.969 59.7 21:00 0.969 59.7 22:00 0.969 59.7 23:00 0.969 59.7