Feb. 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 3.686 71.3 3:00 3.686 71.3 4:00 3.760 71.5 5:00 5.438 74.7 6:00 5.158 74.3 7:00 4.780 73.6 8:00 5.550 74.9 9:00 5.120 74.2 10:00 6.248 75.9 11:00 6.307 76.0 12:00 6.297 76.0 13:00 6.301 76.0 14:00 5.505 74.8 15:00 4.767 73.6 16:00 6.388 76.1 17:00 7.412 77.4 18:00 6.888 76.8 19:00 3.822 71.6 20:00 3.686 71.3 21:00 3.686 71.3 22:00 3.686 71.3 23:00 3.686 71.3