Precision Radio-Controlled Alarm Clock: Operation and Setup Precision radio-controlled alarm clocks represent a fusion of quartz reliability and atomic accuracy. By synchronizing with specialized radio signals—such as MSF in the UK or WWVB in North America —these devices eliminate the need for manual time adjustments and daylight savings corrections. Initial Setup and Radio Synchronization
: Keep the device at least 8 feet away from electronics like TVs or computers, which cause interference.
: Slide the main switch to TIME SET or hold the SET button for 3 seconds until the digits flash. Precision Radio Controlled Alarm Clock Instructions
: If the clock does not set automatically, you can often force a search by holding the RECEIVE or WAVE button for 3 seconds.
: Upon powering on, the clock usually enters "reception mode," indicated by a flashing signal icon (often a radio mast). : Slide the main switch to TIME SET
: When the LCD fades, replace the batteries immediately to ensure reliable alarm performance. Precision Radio Controlled LCD Alarm Clock (563/7894)
: Slide the switch back to RUN or press SET again to lock the time. Alarm and Snooze Functions : When the LCD fades, replace the batteries
To begin, insert the required batteries (typically AA or AAA) while observing the correct polarity.