Operation Guide 3050 3061
•Proper signal reception can be difficult or even impossible under the conditions listed below.
Inside or | Inside a | Near | Near a | Near high- | Among or |
among | vehicle | household | construction | tension | behind |
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•Signal reception normally is better at night than during the day.
•Time calibration signal reception takes from one to seven minutes, but in some cases it can take as long as 13 minutes. Take care that you do not perform any button operations or move the watch during this time.
•The time calibration signal the watch will attempt to pick up depends on its current Home City code setting as shown below. If you use the watch in Japan or Europe (each of which has two different transmitter locations), it will try to receive the time calibration signal from one of the transmitters in your current location. If it cannot receive the signal, it will then try to receive the time calibration signal from the other transmitter.
Home City Codes and Transmitters| Home City Code | Transmitter | Frequency | |
| LIS, LON, | Rugby (England) | 60.0 kHz | |
| MAD, PAR, ROM, BER, | |||
Mainflingen (Germany) | 77.5 kHz | ||
| STO, ATH, MOW* | |||
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| HKG*, BJS*, TPE, | Fukushima (Japan) | 40.0 kHz | |
| SEL, TYO | Fukuoka/Saga (Japan) | 60.0 kHz | |
| HNL*, ANC*, YVR, |
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| LAX, YEA, DEN, MEX, | Fort Collins, Colorado |
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•When a calibration time is reached, the watch will receive the calibration signal only if it is in either the Timekeeping Mode or World Time Mode. Reception is not performed if a calibration time is reached while you are configuring settings.
•Auto receive of the calibration signal is designed to be performed early in the morning, while you sleep (provided that the Timekeeping Mode time is set correctly). Before going to bed for the night, remove the watch from your wrist, and put it in a location where it can receive the signal easily.
•The watch receives the calibration signal for one to five minutes everyday when the time in the Timekeeping Mode reaches each of the calibration times. Avoid performing any button operation within five minutes before or after any one of the calibration times. Doing so can interfere with correct calibration.
•Remember that reception of the calibration signal depends on the current time in the Timekeeping Mode. The receive operation will be performed whenever the display shows any one of the calibration times, regardless of whether or not the displayed time actually is the correct time.
•Calibration signal reception is disabled while a countdown timer operation is in progress.
About the Receiving IndicatorThe receiving indicator shows the strength of the calibration signal being received. For best reception, be sure to keep the watch in a location where signal strength is strongest.
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•Use the receiving indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations.
•Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receiving indicator to indicate signal strength.
| YWG, CHI, MIA, YTO, | (the United States) | 60.0 kHz |
| NYC,YHZ, YYT |
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*The areas covered by the MOW, HKG, BJS, HNL, and ANC city codes are quite far from the time calibration signal transmitters, and so certain conditions may cause problems with signal reception.
| Reception Ranges | U.S. Signal | |
| U.K. and German Signals |
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1,500 kilometers | 2,000 miles | |
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Mainflingen |
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Rugby | 600 miles | |
(1,000 kilometers) | ||
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| Fort Collins |
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Module 3050 (B)
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Module 3061
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During signal reception, a transmitter indicator will flash to show you which signal is currently being received by the watch. After signal reception is complete, the indicator of the transmitter from which the signal was received will remain on, without flashing.
•The following shows the meaning of each of the transmitter indicator names.
JP40: Fukushima (Japan)
JP60: Fukuoka/Saga (Japan)
US60: Fort Collins, Colorado (the United States)
GE77.5: Mainflingen (Germany)
UK60: Rugby (England)
•The transmitter indicator turns off automatically at the start of the first auto receive operation of a new day. The time of the first auto receive operation of a new day depends on your currently selected Home City.
500 kilometers | 500 kilometers |
500 kilometers | Fukushima |
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Fukuoka/Saga |
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1,000 kilometers |
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Japan Signal
•Signal reception may not be possible at the distances noted below during certain times of the year or day. Radio interference may also cause problems with reception.
Mainflingen (Germany) or Rugby (England) transmitters: 500 kilometers (310 miles)
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
•Even when the watch is within the reception range of the transmitter, signal reception will be impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.
•Signal reception is affected by weather, atmospheric conditions, and seasonal changes.
•See the information under “Signal Reception Troubleshooting” if you experience problems with time calibration signal reception.
About Auto ReceiveThe watch receives the time calibration signal automatically up to six times a day. When any auto receive is successful, the remaining auto receive operations are not performed. The reception schedule (calibration times) depends on your currently selected Home City, and whether standard time or Daylight Saving Time is selected for your Home City.
| Your Home City |
| Auto Receive Start Times |
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| LIS, LON | Standard Time | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight |
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| Daylight | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight | 1:00 am |
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| next day | next day |
| MAD, PAR, ROM, | Standard Time | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight | 1:00 am |
| BER, STO |
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| next day | next day |
| Daylight | 3:00 am | 4:00 am | 5:00 am | Midnight | 1:00 am | 2:00 am |
| Saving Time |
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ATH | Standard Time | 3:00 am | 4:00 am | 5:00 am | Midnight | 1:00 am | 2:00 am |
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| next day | next day | next day |
| Daylight | 4:00 am | 5:00 am | Midnight | 1:00 am | 2:00 am | 3:00 am |
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MOW | Standard Time | 4:00 am | 5:00 am | Midnight | 1:00 am | 2:00 am | 3:00 am |
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| next day | next day | next day | next day |
| Daylight | 5:00 am | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am |
| Saving Time |
| next day | next day | next day | next day | next day |
| HKG, BJS, TPE, | Standard Time | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
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| LAX,YEA, DEN, | Daylight | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
| MEX,YWG, CHI, | Saving Time | ||||||
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| Receiving | 1. Enter the Timekeeping Mode. | |
ll ll | 2. Place the watch on a stable surface so its 12 o'clock | ||
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3.Hold down D for about two seconds until RC! appears on the display.
•The indicator of the transmitter whose signal the watch
Transmitter indicator | is attempting to receive will flash. | |||||||||||
• Time calibration signal reception takes from one to five | ||||||||||||
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| Receive successful | minutes. Take care that you do not perform any button | |||||||||||
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| Receive time | operations or move the watch during this time. | |||
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| the watch received will also be indicated. | |
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| The watch will enter the Timekeeping Mode if you press | |
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| Receive date | C or if you do not perform any button operation for | |
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| about two or three minutes. | |
| Receive failed | • If the current reception fails but a previous reception was | |||||||||||
successful, the display shows the previous reception’s | ||||||||||||
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| were successful. | |
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| The watch will enter the Timekeeping Mode without | |
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| changing the time setting if you press C or if you do not | |
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| perform any button operation for about two or three | |
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| To turn auto receive on and off | ||||||||||||
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| 1. In the Timekeeping Mode, press D to display the Last | ||||
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| l | l | 2. Press A so the current auto receive setting (on or | |||
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| l | OFF) is flashing. This is the setting screen. | |
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| • Note that the setting screen will not appear if the | |||
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support time calibration reception.
3. Press D to toggle auto receive on (on) and off (OFF).
4. Press A to exit the setting screen.
•For information about city codes that support signal receive, see “To specify your Home City”.
To check the latest signal reception results
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l | l l | • When receive is successful, the display shows the time | |
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| and date that receive was successful. - |
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| that none of the reception operations were successful. |
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| • To return to the Timekeeping Mode, press C. |
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| Receive date |
| Receive time |
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