Operation Guide 3155
•Signal reception normally is better at night than during the day.
•Time calibration signal reception takes from two to seven minutes, but in some cases it can take as long as 14 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.
| Home City Code | Transmitter | Frequency | |
| LON, PAR, BER, ATH, | Anthorn (England) | 60.0 kHz | |
| LIS, MAD, ROM, STO, MOW* | Mainflingen (Germany) | 77.5 kHz | |
| HKG, BJS | Shangqiu City (China) | 68.5 kHz | |
| TPE, TYO, SEL | Fukushima (Japan) | 40.0 kHz | |
Fukuoka/Saga (Japan) | 60.0 kHz | ||
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| HNL*, ANC*, LAX, DEN, | Fort Collins, Colorado |
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| CHI, NYC,YVR, YEA, MEX, | 60.0 kHz | ||
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| MIA, YTO, YHZ, YYT |
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*The areas covered by the HNL, ANC, and MOW city codes are quite far from the time calibration signal transmitters, and so certain conditions may cause problems with signal reception.
•Calibration signal reception is disabled while a countdown timer/target time operation is in progress.
Approximate Reception RangesU.K. and German Signals1,500 kilometers |
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Anthorn | Mainflingen | |
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500 kilometers | U.S. Signal | |
The Anthorn | 2,000 miles | |
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receivable within | ||
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this area. | 600 miles | |
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| Fort Collins |
500 kilometers | 500 kilometers |
Fukuoka/Saga | Fukushima |
1,000 kilometers | 1,000 kilometers |
Signals are receivable in the Taiwan area when reception conditions are good.
| China Signal | Changchun |
1,500 kilometers |
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500 kilometers | Beijing |
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Chengdu | Shanghai |
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Shangqiu | Hong Kong |
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•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 Anthorn (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)
Shangqiu (China) transmitter: 1500 kilometers (910 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 6 times a day (5 times a day for the Chinese calibration signal). 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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| 1 | 2 | 3 | 4 | 5 | 6 |
| LON, | Standard Time | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* |
LIS | Daylight | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* |
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| PAR, | Standard Time | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* |
| BER, | Daylight | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* | 2:00 am* |
| MAD, | Saving Time |
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STO |
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ATH | Standard Time | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* | 2:00 am* |
| Daylight | 4:00 am | 5:00 am | Midnight* | 1:00 am* | 2:00 am* | 3:00 am* |
| Saving Time |
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MOW | Standard Time | 4:00 am | 5:00 am | Midnight* | 1:00 am* | 2:00 am* | 3:00 am* |
| Daylight | 5:00 am | Midnight* | 1:00 am* | 2:00 am* | 3:00 am* | 4:00 am* |
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| HKG, | Standard Time | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
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BJS | and Daylight |
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| TYO, | Standard Time | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
| TPE, |
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SEL |
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Your Home City |
| Auto Receive Start Times |
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| HNL, | Standard Time | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
| ANC, | and Daylight |
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| LAX, | Saving Time |
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| DEN, |
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| NYC, |
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| YEA, |
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| MEX, |
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| MIA, |
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| YTO, |
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YYT |
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| *Next day |
•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 two to seven minutes everyday when the time in the Timekeeping Mode reaches a calibration time. Do not perform any button operation within seven minutes before or after 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.
About the Signal Strength IndicatorThe signal strength 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. The signal strength indicator is displayed while an auto or manual receive operation is in progress.
Settings updated indicator
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Signal strength indicator | Weak | Strong | |||
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•Even in an area where signal strength is strong, it takes about 10 seconds for signal reception to stabilize enough for the signal strength indicator to indicate signal strength.
•Use the signal strength indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations.
•Following reception of the time calibration signal and calibration of the watch’s time setting, the settings updated indicator will remain on the display in all modes. The settings updated indicator will not be displayed if signal reception was unsuccessful or after you adjust the current time setting manually.
•The settings updated indicator is displayed only when the watch is able to receive both time and date data successfully. It does not appear when only time data is received.
•The settings updated indicator indicates that at least one of the auto calibration signal receive operations was successful. Note, however, that the settings updated indicator disappears from the display each day when the first auto receive operation of the day is performed.
To perform manual receive| Receiving |
| 1. Enter the Timekeeping Mode. | |||
| 2. Hold down Dfor about two seconds until starts to | ||||
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| l | flash on the display. | |
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| l ll | • Time calibration signal reception takes from two to | |
| lll | l | l | ||
| l | seven minutes. Take care that you do not perform any | |||
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| button operations or move the watch during this time. |
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| • If the receive operation is successful, the reception | |
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date and time appear on the display, along with the GET indicator.
3.After manual receive is complete, press Dto return to the Timekeeping mode.
•The watch also will exit the Receive Mode if you do not perform any button operation for about one or two minutes.
•If the latest reception fails but a previous reception was
successful, an indicator (
) will be on the display.
The watch will enter the Receive Mode without changing the time setting if you press Dor if you do not perform any button operation for about one or two minutes.
Note
•To interrupt a receive operation and return to the Receive Mode, press D.
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