Sep. 2016 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 3.686 71.3 3:00 3.738 71.5 4:00 4.262 72.6 5:00 4.113 72.3 6:00 3.986 72.0 7:00 6.038 75.6 8:00 5.218 74.4 9:00 6.234 75.9 10:00 5.886 75.4 11:00 5.681 75.1 12:00 5.667 75.1 13:00 5.815 75.3 14:00 6.202 75.8 15:00 5.656 75.1 16:00 5.080 74.1 17:00 5.151 74.2 18:00 5.570 74.9 19:00 5.659 75.1 20:00 3.793 71.6 21:00 3.686 71.3 22:00 3.686 71.3 23:00 3.686 71.3