Feb. 2004 Ibaraki-ken Mito-shi Expected value of LF field strength Transmitting Station: Hagane-yama LF station Latitude of receiver(Degree): 36.33 Longitude of receiver(Degree): 140.45 Distance from Hagane-yama LF station (km): 987 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 1.131 61.1 1:00 1.131 61.1 2:00 1.131 61.1 3:00 1.131 61.1 4:00 1.131 61.1 5:00 1.106 60.9 6:00 1.472 63.4 7:00 0.729 57.3 8:00 0.869 58.8 9:00 1.215 61.7 10:00 1.150 61.2 11:00 1.029 60.2 12:00 0.961 59.7 13:00 0.975 59.8 14:00 1.066 60.6 15:00 1.187 61.5 16:00 1.168 61.4 17:00 0.613 55.7 18:00 1.273 62.1 19:00 1.274 62.1 20:00 1.122 61.0 21:00 1.131 61.1 22:00 1.131 61.1 23:00 1.131 61.1