Nov. 2021 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 3.819 71.6 1:00 3.819 71.6 2:00 3.819 71.6 3:00 3.819 71.6 4:00 3.824 71.7 5:00 4.429 72.9 6:00 4.566 73.2 7:00 4.516 73.1 8:00 6.418 76.1 9:00 4.796 73.6 10:00 5.774 75.2 11:00 6.133 75.8 12:00 6.151 75.8 13:00 5.909 75.4 14:00 4.989 74.0 15:00 5.828 75.3 16:00 4.727 73.5 17:00 4.966 73.9 18:00 5.683 75.1 19:00 3.885 71.8 20:00 3.819 71.6 21:00 3.819 71.6 22:00 3.819 71.6 23:00 3.819 71.6