Sep. 2014 Yamagata-ken Yamagata-shi Expected value of LF field strength Transmitting Station: Ohtakadoya-yama LF station Latitude of receiver(Degree): 38.23 Longitude of receiver(Degree): 140.37 Distance from Ohtakadoya-yama LF station (km): 105 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 10.756 80.6 1:00 10.756 80.6 2:00 10.756 80.6 3:00 10.698 80.6 4:00 10.030 80.0 5:00 9.935 79.9 6:00 8.498 78.6 7:00 9.057 79.1 8:00 9.495 79.5 9:00 9.318 79.4 10:00 9.056 79.1 11:00 9.102 79.2 12:00 9.109 79.2 13:00 9.063 79.1 14:00 9.205 79.3 15:00 9.623 79.7 16:00 8.647 78.7 17:00 8.711 78.8 18:00 8.189 78.3 19:00 8.895 79.0 20:00 10.638 80.5 21:00 10.756 80.6 22:00 10.756 80.6 23:00 10.756 80.6