Operation Guide 3150
•Normally, your watch should show the correct time as soon as you select your Home City code. If it does not, it should adjust automatically after the next auto receive operation (in the middle of the night). You also can perform manual receive or you can set the time manually.
•The watch will receive the time calibration signal automatically from the applicable transmitter (in the middle of the night) and update its settings accordingly. For information about the relationship between city codes and transmitters, see “Time Calibration Signal Reception” and “Transmitters”.
•See the maps under “Approximate Reception Ranges” for information about the reception ranges of the watch.
•You can disable time signal reception, if you want. See “To turn auto receive on and off” for more information.
•Under factory default settings, auto receive is turned off for all of the following city codes: MOW (Moscow), HNL (Honolulu), and ANC (Anchorage). For details about turning on auto receive for these city codes, see “To turn auto receive on and off”.
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.
•Auto ReceiveWith auto receive, the 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. For more information, see “About Auto Receive”.
•Manual ReceiveManual receive lets you start a time calibration receive operation with the press of a button. For more information, see “To perform manual receive”.
Important!•When getting ready to receive the time calibration signal, position the watch as shown in the nearby illustration, with its 12 o’clock side facing towards a window. This watch is designed to receive a time calibration signal late at night. Because of this, you should place the watch near a window as shown in the illustration when you take it off at night. Make sure there are no metal objects nearby.
12 o’clock
or
•Make sure the watch is facing the right way.•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 |
buildings |
| appliances, | site, airport, | power lines | mountains |
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| office | or other |
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| phone | noise |
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•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.
1,500 kilometers
Anthorn |
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500 kilometers | Mainflingen | |
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The Anthorn | 2,000 miles | |
signal is | ||
receivable within | (3,000 kilometers) | |
this area. |
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| 600 miles | |
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| Fort | |
| Collins | |
500 |
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kilometers | 500 | |
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Fukuoka/Saga | Fukushima | |
1,000 | 1,000 | |
kilometers | ||
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Signals are receivable in the Taiwan area when reception conditions are good.
Changchun
1,500 kilometers
500 kilometers
Beijing
Shanghai
Chengdu
Hong Kong
Shangqiu
•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 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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| LON, | Standard Time | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* |
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LIS | Daylight Saving Time | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* |
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| BER, | Standard Time | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* |
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| MAD, | Daylight Saving Time | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* | 2:00 am* |
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| ROM, |
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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* |
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| Daylight Saving Time | 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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| Daylight Saving Time | 5:00 am | Midnight* | 1:00 am* | 2:00 am* | 3:00 am* | 4:00 am* |
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| HKG, | Standard Time and | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
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BJS | Daylight Saving Time |
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| TYO, | Standard Time | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
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SEL |
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| HNL, | Standard Time and | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
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| ANC, | Daylight Saving Time |
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| LAX, |
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| DEN, |
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| CHI, |
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| NYC, |
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| YVR, |
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| YEA, |
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| MEX, |
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| MIA, |
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| YTO, |
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| YHZ, |
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YYT |
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| *Next day |
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