Feb. 2004 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 10.756 80.6 1:00 10.756 80.6 2:00 10.756 80.6 3:00 10.756 80.6 4:00 10.676 80.6 5:00 9.107 79.2 6:00 8.282 78.4 7:00 8.508 78.6 8:00 8.796 78.9 9:00 9.475 79.5 10:00 9.543 79.6 11:00 9.252 79.3 12:00 9.224 79.3 13:00 9.461 79.5 14:00 9.619 79.7 15:00 8.591 78.7 16:00 9.462 79.5 17:00 9.696 79.7 18:00 8.079 78.1 19:00 10.609 80.5 20:00 10.756 80.6 21:00 10.756 80.6 22:00 10.756 80.6 23:00 10.756 80.6