Apr. 2017 Chiba-ken Chiba-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 35.60 Longitude of receiver(Degree): 140.12 Distance from Hagane-yama LF station (km): 939 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 0.983 59.8 1:00 0.983 59.8 2:00 0.983 59.8 3:00 0.983 59.8 4:00 0.951 59.6 5:00 1.463 63.3 6:00 1.159 61.3 7:00 0.778 57.8 8:00 1.288 62.2 9:00 1.263 62.0 10:00 1.047 60.4 11:00 0.857 58.7 12:00 0.768 57.7 13:00 0.786 57.9 14:00 0.910 59.2 15:00 1.138 61.1 16:00 1.308 62.3 17:00 1.199 61.6 18:00 0.562 55.0 19:00 1.614 64.2 20:00 1.143 61.2 21:00 0.964 59.7 22:00 0.983 59.8 23:00 0.983 59.8