May. 2023 Yamagata-ken Yamagata-shi Expected value of LF field strength Transmitting Station: Ohtakadoya-yama LF station Latitude of receiver(Degree): 38.23 Longitude of receiver(Degree): 140.37 Distance from Ohtakadoya-yama LF station (km): 105 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 10.913 80.8 1:00 10.910 80.8 2:00 10.750 80.6 3:00 10.042 80.0 4:00 10.558 80.5 5:00 9.745 79.8 6:00 10.059 80.1 7:00 9.110 79.2 8:00 9.494 79.5 9:00 9.074 79.2 10:00 9.170 79.2 11:00 9.207 79.3 12:00 9.209 79.3 13:00 9.184 79.3 14:00 9.090 79.2 15:00 9.316 79.4 16:00 9.536 79.6 17:00 9.192 79.3 18:00 8.183 78.3 19:00 9.024 79.1 20:00 8.948 79.0 21:00 10.708 80.6 22:00 10.881 80.7 23:00 10.913 80.8