Jul. 2023 Oita-ken Oita-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 33.23 Longitude of receiver(Degree): 131.62 Distance from Hagane-yama LF station (km): 137 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 11.235 81.0 1:00 11.235 81.0 2:00 11.225 81.0 3:00 11.029 80.9 4:00 10.711 80.6 5:00 9.230 79.3 6:00 10.202 80.2 7:00 9.336 79.4 8:00 10.307 80.3 9:00 9.776 79.8 10:00 9.992 80.0 11:00 9.941 79.9 12:00 9.932 79.9 13:00 9.933 79.9 14:00 9.952 80.0 15:00 9.996 80.0 16:00 9.635 79.7 17:00 10.419 80.4 18:00 10.921 80.8 19:00 9.764 79.8 20:00 11.438 81.2 21:00 11.207 81.0 22:00 11.104 80.9 23:00 11.235 81.0