Sep 2010 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 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 0.746 57.5 1:00 0.746 57.5 2:00 0.746 57.5 3:00 0.746 57.5 4:00 0.726 57.2 5:00 1.031 60.3 6:00 1.388 62.8 7:00 0.388 51.8 8:00 1.047 60.4 9:00 1.159 61.3 10:00 1.066 60.6 11:00 0.894 59.0 12:00 0.814 58.2 13:00 0.829 58.4 14:00 0.942 59.5 15:00 1.103 60.9 16:00 1.160 61.3 17:00 0.895 59.0 18:00 0.517 54.3 19:00 1.539 63.7 20:00 0.778 57.8 21:00 0.743 57.4 22:00 0.746 57.5 23:00 0.746 57.5