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WWVB Coverage Area


The coverage maps shown below are computer-generated estimates of WWVB signal strength under typical conditions. They show estimated signal coverage at two-hour intervals over the course of a day with WWVB operating at 50 kW radiated power. The shaded areas indicate those areas where signal levels are 100 microvolts per meter or greater. Note that the coverage area contracts during daylight hours and expands during nighttime hours.
0000 UTC
WWVB Coverage Area, 0000 UTC
0200 UTC
WWVB Coverage Area, 0200 UTC
0400 UTC
WWVB Coverage Area, 0400 UTC
0600 UTC
WWVB Coverage Area, 0600 UTC


0800 UTC
WWVB Coverage Area, 0800 UTC
1000 UTC
WWVB Coverage Area, 1000 UTC
1200 UTC
WWVB Coverage Area, 1200 UTC
1400 UTC
WWVB Coverage Area, 1400 UTC


1600 UTC
WWVB Coverage Area, 1600 UTC
1800 UTC
WWVB Coverage Area, 1800 UTC
2000 UTC
WWVB Coverage Area, 2000 UTC
2200 UTC
WWVB Coverage Area, 2200 UTC