Feb 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 0.746 57.5 5:00 0.715 57.1 6:00 1.269 62.1 7:00 0.981 59.8 8:00 0.556 54.9 9:00 1.100 60.8 10:00 1.176 61.4 11:00 1.124 61.0 12:00 1.083 60.7 13:00 1.092 60.8 14:00 1.144 61.2 15:00 1.176 61.4 16:00 0.993 59.9 17:00 0.371 51.4 18:00 1.471 63.4 19:00 0.959 59.6 20:00 0.735 57.3 21:00 0.746 57.5 22:00 0.746 57.5 23:00 0.746 57.5