Theradio-controlledwatchdisplaystheprecisetimeanddatebyautomaticallyreceiving
andsynchronizingitselfwiththeradiosignalofanocialstandardfrequency.
Timesignaltransmittedbyastandardfrequencyisbasedonasuperaccurate"Cesium
AtomicClock"thatmayhavea1secondlossorgainperonehundredthousandyears.
■Mechanismofradiosignalreception
Cesium
AtomicClock
Radio-controlledwatch
Receiveradiosignals
throughtheantenna
insidethewatch
↓
Analyzetime
information
↓
Displaythecurrent
time,dateandday
Ocialstandard
frequency
Settingthetimeanddatebyreceivingaradiosignal
94
HowtoSettheTimeandDate(RadioSignalReception)
Transmitting
Station