Aug. 2014 Niigata-ken Niigata-shi Expected value of LF field strength Transmitting Station: Ohtakadoya-yama LF station Latitude of receiver(Degree): 37.90 Longitude of receiver(Degree): 139.02 Distance from Ohtakadoya-yama LF station (km): 172 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 3.686 71.3 1:00 3.686 71.3 2:00 3.725 71.4 3:00 3.932 71.9 4:00 7.295 77.3 5:00 6.930 76.8 6:00 6.976 76.9 7:00 4.505 73.1 8:00 6.063 75.7 9:00 5.967 75.5 10:00 5.643 75.0 11:00 5.585 74.9 12:00 5.583 74.9 13:00 5.617 75.0 14:00 5.859 75.4 15:00 6.179 75.8 16:00 4.709 73.5 17:00 6.958 76.8 18:00 5.453 74.7 19:00 5.965 75.5 20:00 3.986 72.0 21:00 3.767 71.5 22:00 3.686 71.3 23:00 3.686 71.3