Aug. 2023 Okinawa-ken Naha-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 26.20 Longitude of receiver(Degree): 127.68 Distance from Hagane-yama LF station (km): 843 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 1.528 63.7 1:00 1.528 63.7 2:00 1.528 63.7 3:00 1.528 63.7 4:00 1.480 63.4 5:00 0.790 57.9 6:00 1.859 65.4 7:00 0.497 53.9 8:00 1.007 60.1 9:00 1.301 62.3 10:00 1.215 61.7 11:00 1.078 60.7 12:00 1.012 60.1 13:00 1.025 60.2 14:00 1.121 61.0 15:00 1.264 62.0 16:00 1.254 62.0 17:00 0.774 57.8 18:00 0.956 59.6 19:00 1.903 65.6 20:00 1.027 60.2 21:00 1.501 63.5 22:00 1.528 63.7 23:00 1.528 63.7