Aug. 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 1.139 61.1 3:00 1.129 61.1 4:00 1.079 60.7 5:00 1.274 62.1 6:00 1.530 63.7 7:00 0.523 54.4 8:00 1.169 61.4 9:00 1.328 62.5 10:00 1.195 61.6 11:00 1.042 60.4 12:00 0.967 59.7 13:00 0.982 59.8 14:00 1.089 60.7 15:00 1.258 62.0 16:00 1.319 62.4 17:00 1.003 60.0 18:00 0.591 55.4 19:00 1.790 65.1 20:00 0.863 58.7 21:00 1.099 60.8 22:00 1.139 61.1 23:00 1.139 61.1