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8. Reception Area Guidelines
This watch can receive standard time radio waves broadcast from Japan (two
transmitters), the USA, Europe (Germany) and China.
The standard time radio wave to be received can be changed by selecting the city in
another region.
The maps show the approximate reception areas. However, note that the radio wave
condition could change due to factors including the weather (such as lightning) and
changes in the season or sunrise/sunset time.
The reception area on the map is only guideline, and it may be difficult to receive the
radio signal even within the areas indicated on the map.
Standard time
radio signal
Transmitter Frequency
JJY
Japan
WWVB
USA
DCF77
Germany
BPC
China
Ohtakadoya-yama Standard Time Transmitter
(Fukushima Transmitter)
Hagane-yama Standard Time Transmitter
(Kyushu Transmitter)
Fort Collins Transmitter, Denver, Colorado
Mainflingen Transmitter, Southeast Frankfurt
Shangqiu Transmitter, Henan
The standard time radio wave used by this radio controlled watch may be interrupted
occasionally due to special circumstances at the radio wave transmitter.
Even if reception of the standard time radio wave has failed, the watch will continue to
be accurate to within ±15 seconds per month.
40 kHz
60 kHz
60 kHz
77.5 kHz
68.5 kHz