Dec 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 0.852 58.6 1:00 0.852 58.6 2:00 0.852 58.6 3:00 0.852 58.6 4:00 0.852 58.6 5:00 0.846 58.6 6:00 0.898 59.1 7:00 1.626 64.2 8:00 0.608 55.7 9:00 0.893 59.0 10:00 1.234 61.8 11:00 1.272 62.1 12:00 1.257 62.0 13:00 1.261 62.0 14:00 1.272 62.1 15:00 1.172 61.4 16:00 0.675 56.6 17:00 0.939 59.5 18:00 1.490 63.5 19:00 0.804 58.1 20:00 0.852 58.6 21:00 0.852 58.6 22:00 0.852 58.6 23:00 0.852 58.6