To Improve Radio Wave Reception; Radio Wave Reception Q & A - Seiko S770 Instructions Manual

4
Wait for several minutes, leaving the watch unmoved.
※ While the watch is receiving radio waves, keep the watch stationary.
The watch cannot receive radio waves if it is moved during reception.
It takes time to complete the reception (17 minutes at
the longest) depending on the reception environment.
A diff erent display will appear
depending on the transmitting
station from which the watch
is receiving radio waves.
While the watch is receiving
radio waves, you will see one
of those displays shown in
the table at the right.
If the home time city is not adequately designated,
the watch cannot receive radio waves.
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→ How to check the settings of the watch
(Miscellaneous information display) P106
※ To cancel the reception, press any button. And then,
press the BACK button to go back to the step
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To improve radio wave reception

・ Move the watch to a diff erent place or try rotating the watch to change its orientation.
Even if the watch is within the radio wave reception range, radio reception may be obstructed depending on conditions such as weather,
surrounding geographic features, buildings or direction. Refer to "Environments in which it is diffi cult to receive a radio signal" on P118.
If the watch is located outside the reception range, it cannot receive radio waves. → Radio signal reception range P112
・ If the home time city is not adequately designated, the watch cannot receive radio waves.
Check the home time city setting. → How to check the settings of the watch (Miscellaneous information display) P106
・ Try receiving radio waves at a diff erent time of the day. (Manual reception)
Even in the same location, the radio wave reception environment changes
depending on the time of the day. Radio wave reception is generally easier at night.
・ When you see an "Out Of Service" message on the screen during manual reception
You will see this message if the designated home time city is outside the radio wave reception range. Check the
home time city setting. → How to check the settings of the watch (Miscellaneous information display) P106
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The watch can receive radio waves only when the home time city is designated for a city, such as Tokyo, within a radio wave reception range
in which the radio wave reception function works. → Radio signal reception range Japan P113, Germany P114, United Kingdom P115, United States P116
・ When you use the watch in a place or region where the watch cannot receive radio waves or if you fi nd your watch cannot
receive radio waves, manually set the time. → How to manually set the time and date (Year, month and date) P162
160
Screenshots during reception
Transmitting Names of the
Screenshots
stations countries
JJY
Japan
40kHz
JJY
Japan
60kHz
DCF77 Germany
The United
MSF
Kingdom
The United
WWVB
States
3
.
5
When you hear a bleep, check the reception result.
OK
Reception was
successful.
Bleep
NG
Reception was
not successful.
Bleep
※ When the watch cannot receive radio waves → P160
※ If the watch is located outside the reception range, it cannot receive radio waves.
→ Radio wave reception range P112
■ Radio wave reception Q & A
Q ：When will my watch receive radio waves?
A ： Standard radio waves are transmitted almost 24 hours a day. But your radio-controlled watch does
not receive radio waves all day. The watch is designed to conduct automatic reception a few times
at midnight when radio waves are generally stronger. While the watch is not receiving radio waves,
its accuracy is kept by the quartz movement with monthly accuracy within 15 seconds.
Q ： My watch does not correct time immediately after manual reception. Why does this happen?
A ：It may take 17 minutes at the longest for your watch to complete receiving radio waves.
It takes one minute in each instance for complete time and calendar data to be transmitted. In order
to synchronize, the watch must receive an entire sequence of data. As reception interference often
occurs due to various sources such as radio noise, the watch is designed to repeat receiving radio
waves several times to verify correct data. Therefore, it takes some time for the watch to complete a
reception. Additionally, a poor reception environment may prolong the duration of reception. While the
watch is receiving radio waves, remember not to operate any buttons and keep your watch stationary.
Q ：What should I do for successful reception?
A ： The strength of standard radio waves is aff ected by various factors such as distance from the
transmitting station, surrounding geographical features including nearby buildings, or weather
conditions. As the watch is designed to conduct automatic reception at midnight, it is a good idea
to place the watch by a window facing the direction of the transmitting station before you go to
bed. When you conduct manual reception, try looking for a place with a good reception environment.
To return to the time
display, hold down the
BACK button.
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