Apr 2012 Yamagata-ken Yamagata-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 38.23 Longitude of receiver(Degree): 140.37 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 1.471 63.4 1:00 1.471 63.4 2:00 1.471 63.4 3:00 1.471 63.4 4:00 1.451 63.2 5:00 1.507 63.6 6:00 0.654 56.3 7:00 1.126 61.0 8:00 1.186 61.5 9:00 0.951 59.6 10:00 0.679 56.6 11:00 0.486 53.7 12:00 0.400 52.0 13:00 0.415 52.4 14:00 0.533 54.5 15:00 0.769 57.7 16:00 1.041 60.3 17:00 1.224 61.8 18:00 0.963 59.7 19:00 0.880 58.9 20:00 1.523 63.7 21:00 1.458 63.3 22:00 1.471 63.4 23:00 1.471 63.4