Aug. 2023 Ehime-ken Matsuyama-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 33.83 Longitude of receiver(Degree): 132.77 Distance from Hagane-yama LF station (km): 243 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 5.797 75.3 1:00 5.797 75.3 2:00 5.797 75.3 3:00 5.771 75.2 4:00 5.560 74.9 5:00 3.105 69.8 6:00 6.428 76.2 7:00 6.015 75.6 8:00 3.949 71.9 9:00 5.342 74.6 10:00 4.971 73.9 11:00 4.850 73.7 12:00 4.853 73.7 13:00 4.851 73.7 14:00 4.861 73.7 15:00 5.122 74.2 16:00 5.091 74.1 17:00 4.527 73.1 18:00 3.582 71.1 19:00 3.282 70.3 20:00 6.128 75.7 21:00 5.636 75.0 22:00 5.797 75.3 23:00 5.797 75.3