
Operation Guide
GENERAL GUIDE
1Time Set buttonsUse these buttons to set the current time.
2SET buttonUse this button when setting the current time.
3RESET buttonPress this button to reset the clock after replacing its batteries.
4WAVE buttonPress this button to receive the time calibration signal and adjust timekeeping.
5Transmitter switchSlide this switch to toggle between the two receivable time calibration signal transmitters. DCF : Mainflingen, German transmitter (Clock displays German time.)
MSF : Rugby, England transmitter (Clock displays U.K time.)
*Note that there is one hour difference between German time and U.K time. Make sure you select the correct setting for your region.
6 °C/ °F switchSlide to toggle the temperature unit between Celsius and Fahrenheit.
TIME CALIBRATION SIGNAL RECEPTION PRECAUTIONS
• This clock is able to receive the time calibration signals in Mainflingen, | Rugby |
Germany or in Rugby, England. You can select which transmitter should |
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be used for reception by sliding the transmitter switch to the setting you |
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want. |
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Mainflingen: Signal reception is possible within approximately 1800 km |
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of the transmitter. |
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Rugby: Signal reception is possible within approximately 1800 km of the |
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transmitter. |
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•Even when the clock is within the reception range, signal reception is impossible if the signal is blocked by mountains or other geological formations between the clock and signal source.
•Signal reception is affected by weather, atmospheric conditions, and seasonal changes.
•The time calibration signal is bounced off the ionosphere. Because of
this, such factors as changes in the reflectivity of the ionosphere, as well
as movement of the ionosphere to higher altitudes due to seasonalMainflingen atmospheric changes or the time of day may change the reception
range of the signal and make reception temporarily impossible.
•Reception is best when the back of the clock is facing in the direction of the selected transmitter. Note, however, that moving the clock while the time calibration signal receive operation is taking place will make stable reception impossible.
•Think of the clock as acting like a TV or radio when it is receiving the calibration signal.When receiving indoors, move to a location as near as possible to a window. Proper signal reception can be difficult or even impossible under the conditions listed below.
Inside, among | Inside a vehicle | Near refrigerators | Near a | Near | Among or behind |
buildings, or near |
| or other household | construction site, | power lines | mountains |
neon signs |
| appliances, near | airport, or other |
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| office equipment, | sources of |
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| mobile phones or | electrical noise, |
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| wireless LAN | underground or in |
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| devices. | tunnels, near |
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| railroads, |
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| highways, or radio |
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| stations with |
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| interfering |
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| frequencies. |
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•Signal reception is normally better at night than during the day.
•Radio interference can make signal reception impossible.
•Strong electrostatic charge can result in the wrong time being set.
USING THE CLOCK
Selecting a Transmitter
Slide the Transmitter switch (5) to specify Mainflingen, Germany (DCF) or Rugby, England (MSF) as the transmitter to be used for reception.
DCF: Select this setting to receive the Mainflingen, German transmitter signal. You should select this setting when you live outside of the U.K.
MSF: Select this setting to receive the Rugby, England transmitter signal. You should select this setting if you live in the U.K.
Any of the following procedures can be used to set current date and time.
•Auto receive of the time calibration signal
•Manual receive of the time calibration signal
•Manual setting without using the time calibration signal
Auto Receive
•This clock performs a
•A signal receive operation takes from two to fourteen minutes under good signal conditions.
•A receive indicator shows the current status of the receive operation.
•More bars in the receive indicator during signal reception indicate better signal reception.
Antenna Icon
The antenna icon appears when at least one signal receive operation is successful during a day. The antenna icon is cleared at 2 a.m. and 3 a.m. each day, and will reappear as soon as a subsequent signal receive operation is successful.
Wave OK Indicator
The Wave OK indicator is displayed when there has been a successful receive operation within the last hour. This indicator disappears at the top of each hour, or when you perform a manual receive operation.
Unsuccessful Signal Reception
The antenna icon disappears from the display if no signal receive operation is successful during a continuous
Manual Receive
•Press the WAVE button (4) to start a calibration signal receive operation.
•Use the WAVE button (4) to perform a receive operation after replacing the clock’s batteries or if the auto receive operation was not performed correctly for some reason.
•The antenna icon appears when signal reception triggered by the WAVE button (4) is successful.
Important!
•Do not perform any button or switch operation while a signal receive operation is in progress.
•The time calibration signal includes both Standard Time and Daylight Saving Time (summer time) data.
•The DST indicator appears on the display when Daylight Saving Time (summer time) data is received.
•Note that Daylight Saving Time (summer time) is turned on and off in accordance with the received time calibration signal only. You cannot turn it on or off manually.
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