Apr. 2021 Nagano-ken Nagano-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 36.65 Longitude of receiver(Degree): 138.18 Distance from Hagane-yama LF station (km): 808 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 1.905 65.6 1:00 1.905 65.6 2:00 1.905 65.6 3:00 1.905 65.6 4:00 1.831 65.3 5:00 0.684 56.7 6:00 1.780 65.0 7:00 0.748 57.5 8:00 0.499 54.0 9:00 1.017 60.1 10:00 1.135 61.1 11:00 1.087 60.7 12:00 1.038 60.3 13:00 1.048 60.4 14:00 1.106 60.9 15:00 1.141 61.1 16:00 0.896 59.0 17:00 0.219 46.8 18:00 1.254 62.0 19:00 1.480 63.4 20:00 1.250 61.9 21:00 1.861 65.4 22:00 1.905 65.6 23:00 1.905 65.6