Operation Guide 3215 3222
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.
•Auto Receive
With auto receive, the 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. For more information, see “About Auto Receive”.
•Manual Receive
Manual 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 pointing 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 power | behind |
buildings |
| appliances, | site, airport, | lines | mountains |
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| office | or other |
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| equipment, | sources of |
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| or a mobile | electrical |
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| phone | noise |
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•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 | |
LIS, LON, MAD, PAR, ROM, | Anthorn (England) | 60.0 kHz | |
BER, STO, ATH, MOW* | Mainflingen (Germany) | 77.5 kHz | |
HKG, BJS | Shangqiu City (China) | 68.5 kHz | |
TPE, SEL, TYO | Fukushima (Japan) | 40.0 kHz | |
Fukuoka/Saga (Japan) | 60.0 kHz | ||
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HNL*, ANC*, YVR, LAX, YEA, | Fort Collins, Colorado | 60.0 kHz | |
DEN, MEX, CHI, NYC, YHZ, YYT | (the United States) | ||
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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 operation is in progress.
Approximate Reception Ranges
U.K. and German Signals
1,500 kilometers
Mainflingen
Anthorn
North American Signal
500 kilometers
2,000 miles
(3,000 kilometers)
The Anthorn signal is receivable within
this area.
600 miles (1,000 kilometers)
Fort Collins
Japan Signals
•Signal reception may not be possible at the distances noted below during certain times of the year or day. Radio interference also may 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: 1,500 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 Receive
The 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 |
LIS | Standard Time | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* |
LON | Daylight Saving Time | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* |
MAD | Standard Time | 2:00 am | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* |
PAR | Daylight Saving Time | 3:00 am | 4:00 am | 5:00 am | Midnight* | 1:00 am* | 2:00 am* |
ROM |
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BER |
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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 Saving Time | 4:00 am | 5:00 am | Midnight* | 1:00 am* | 2:00 am* | 3:00 am* |
MOW | Standard Time | 4:00 am | 5:00 am | Midnight* | 1:00 am* | 2:00 am* | 3:00 am* |
| Daylight Saving Time | 5:00 am | Midnight* | 1:00 am* | 2:00 am* | 3:00 am* | 4:00 am* |
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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TPE | Standard Time | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
SEL |
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TYO |
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HNL | Standard Time and | Midnight | 1:00 am | 2:00 am | 3:00 am | 4:00 am | 5:00 am |
ANC | Daylight Saving Time |
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YVR |
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LAX |
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YEA |
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DEN |
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MEX |
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CHI |
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NYC |
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YHZ |
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YYT |
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*Next day
Note
•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 Indicator
The 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.
RCVD indicator
lll lll |
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l | l |
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l | l |
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| ll ll | l |
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| l ll |
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| ll | l |
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| l | l |
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| l |
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| lll |
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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 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 RCVD indicator will remain on the display in all modes. The RCVD |
indicator will not be displayed if signal reception was unsuccessful or after you adjust |
500 kilometers
500 kilometers
the current time setting manually. |
• The RCVD indicator is displayed only when the watch is able to receive both time |
Fukuoka/Saga
Fukushima
1,000 kilometers
and date data successfully. It does not appear when only time data is received. |
• The RCVD indicator indicates that at least one calibration signal receive operation |
1,000 kilometers
Signals are receivable in the Taiwan area when reception conditions are good.
China Signal
1,500 kilometers
Changchun
500 kilometers | Beijing |
Chengdu | Shanghai |
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Shangqiu | Hong Kong |
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(auto or manual) was successful during the current day. Note that the RCVD |
indicator disappears from the display each day when the first receive operation of |
the day is performed.
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