Aug 2010 Niigata-ken Niigata-shi Expected value of LF field strength Transmitting Station: Ohtakadoya-yama LF station Latitude of receiver(Degree): 37.90 Longitude of receiver(Degree): 139.02 Time(JST) Field Strength(mV/m) Field Strength(dB uV/m) 0:00 3.907 71.8 1:00 3.907 71.8 2:00 3.944 71.9 3:00 4.180 72.4 4:00 6.646 76.5 5:00 6.135 75.8 6:00 6.351 76.1 7:00 5.048 74.1 8:00 5.904 75.4 9:00 5.878 75.4 10:00 5.640 75.0 11:00 5.598 75.0 12:00 5.597 75.0 13:00 5.620 75.0 14:00 5.803 75.3 15:00 5.987 75.5 16:00 5.165 74.3 17:00 6.238 75.9 18:00 5.201 74.3 19:00 5.291 74.5 20:00 4.808 73.6 21:00 3.984 72.0 22:00 3.907 71.8 23:00 3.907 71.8