Why won't my device sync with the WWVB signal?

WWVB signal reception can be blocked by obstacles such as concrete walls or interference from other electronic devices. Try moving the device to a different location, such as near a window, and attempt reception again. You can trigger a new reception attempt by pressing and holding the °C/°F button for about 3 seconds until the reception icon flashes on the display. (Page 12, 22)