Jun. 2023 Gunma-ken Maebashi-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 36.38 Longitude of receiver(Degree): 139.07 Distance from Hagane-yama LF station (km): 871 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 1.139 61.1 1:00 1.139 61.1 2:00 1.126 61.0 3:00 1.093 60.8 4:00 0.834 58.4 5:00 1.875 65.5 6:00 0.913 59.2 7:00 0.793 58.0 8:00 1.270 62.1 9:00 1.308 62.3 10:00 1.120 61.0 11:00 0.969 59.7 12:00 0.904 59.1 13:00 0.917 59.2 14:00 1.010 60.1 15:00 1.179 61.4 16:00 1.322 62.4 17:00 1.168 61.4 18:00 0.546 54.8 19:00 1.396 62.9 20:00 1.577 64.0 21:00 0.890 59.0 22:00 1.105 60.9 23:00 1.134 61.1