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Operation Guide 5073
2
Approximate Reception Ranges
UK and German Signals
Anthorn
500 kilometers
1,500 kilometers
Mainflingen
The Anthorn signal is receivable
within this area.
North American Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Japanese Signal
Fukushima
500 kilometers
1,000 kilometers
Fukuoka/Saga
Chinese Signal
1,500 kilometers
Changchun500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
Even when the watch is within range of a transmitter, signal reception may be •
impossible due to the effects of geographic contours, structures, weather, the time
of year, the time of day, radio interference, etc. The signal becomes weaker at
distances of approximately 500 kilometers, which means that the influence of the
above conditions becomes even greater.
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: 500 kilometers (310 miles) −
As of January 2009, China does not use Daylight Saving Time (DST). If China does •
go to the Daylight Saving Time system in the future, some functions of this watch
may no longer operate correctly.
To get ready for a receive operation
Check to make sure the watch is in the regular timekeeping mode. If it isn’t, hold 1.
down C for about two seconds to enter the regular timekeeping mode.
The antenna of this watch is located on its 6 o’clock side. Position the watch with 2.
6 o’clock facing towards a window as shown in the nearby illustration. Make sure
there are no metal objects nearby.
6 o’clock
or
Signal reception normally is better •
at night.
The receive operation 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 operation or
move the watch during this time.
Signal reception may be difficult or even impossible under the conditions •
described below.
Inside or
among
buildings
Inside a
vehicle
Near
household
appliances,
office
equipment,
or a mobile
phone
Near a
construction
site, airport,
or other
sources of
electrical
noise
Near
high-tension
power lines
Among
or behind
mountains
What you should do next depends on whether you are using Auto Receive or 3.
Manual Receive.
Auto Receive: Leave the watch over night in the location you selected in step 2. •
See “Auto Receive” for details.
Manual Receive: Perform the operation under “To perform manual receive”. •
Auto Receive
With Auto Receive, the watch performs the receive operation each day •
automatically up to six times (up to five times for the Chinese calibration signal)
between the hours of midnight and 5 a.m. (according to the Home City time). When
any receive operation is successful, none of the other receive operations for that
day are performed.
The receive operation is not performed if a calibration time is reached while you are •
configuring settings.
To perform manual receive
In the regular timekeeping mode, keep 1. A depressed (for about two seconds) as
the
x Second Hand goes through the following sequence.
Moves to the last signal reception result ( • Y or N), then to READY (or R for some
models).
The 2.
x Second Hand indicates the operations the watch is currently performing.
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When the x Second
Hand is pointed here:
It means this:
READY (R) Watch is setting up for reception.
WORK (W) Reception is in progress.
YES (Y)
Reception was completed
successfully.
NO (N) Reception failed for some reason.
If signal reception is unstable, the • x Second Hand may
move between WORK (W) and READY (R).
The receive operation is complete when the 3.
x Second
Hand moves to YES (Y) or NO (N) for about five
seconds, and then resumes regular timekeeping.
When the receive operation is successful, the watch •
adjusts the time setting accordingly. It does not adjust
the setting if the operation failed.
Note
To interrupt a receive operation and return to the regular •
timekeeping, press any button.
If the •
x Second Hand is pointing to YES (Y) or NO (N),
you can return to regular timekeeping by pressing A.
To check the result of the latest receive operation
In the regular timekeeping mode, press A.
The •
x Second Hand will move to YES (Y) for five
seconds if the latest receive operation was successful,
or NO (N) if it was not. After that, regular timekeeping
will resume.
Note
The •
x Second Hand will indicate NO (N) if you have
adjusted the time or date setting manually since the
latest receive operation.
If the •
x Second Hand is pointing to YES (Y) or NO (N),
you can return to regular timekeeping by pressing A.
Radio-controlled Atomic Timekeeping Precautions
Strong electrostatic charge can result in the wrong time setting. •
Even if a receive operation is successful, certain conditions can cause the time •
setting to be off by up to one second.
The watch is designed to update the date and day of the week automatically for •
the period January 1, 2000 to December 31, 2099. Updating of the date by signal
reception will no longer be performed starting from January 1, 2100.
If you are in an area where signal reception is not possible, the watch keeps time •
with the precision noted in “Specifications”.
The receive operation is disabled under any of the following conditions. •
While power is at Level 2 or lower −
When the watch is in the function sleep state (“Power Saving”) −
Mode Reference Guide
Your watch has two timekeeping modes, and a number of setting modes. The
timekeeping mode you should select depends on what you want to do.
To do this: Enter this mode:
View the current time in your Home City and in one of 29 •
other cities around the globe
View the current date in the Home City •
Configure Home City and daylight saving time (DST) •
settings
Perform a time calibration receive operation •
Configure time and date settings manually •
Regular timekeeping mode
Select one of 29 cities (time zones) around the world and •
view the current time there.
Select daylight saving/summer time (DST) or standard time •
for a time zone
World Time setting mode
Selecting a Mode
With this watch, everything starts from the regular timekeeping mode.
To determine the watch’s current mode
Check the position of the
v Day of the Week Hand as
shown under “To select a mode”.
To return to the regular timekeeping mode from
another mode
Hold down C for about two seconds until the
x Second
Hand stops and then starts moving again.
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