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Operation Guide 5117
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
Inside a
Near household
among
vehicle
appliances,
buildings
office
equipment,
or a mobile
phone
• 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
Anthorn (England)
LON, PAR, BER, ATH,
LIS, MAD, ROM, STO, MOW*
Mainflingen (Germany)
HKG, BJS
Shangqiu City (China)
Fukushima (Japan)
TPE, TYO, SEL
Fukuoka/Saga (Japan)
HNL*, ANC*, LAX, DEN,
Fort Collins, Colorado
CHI, NYC, YVR, YEA, MEX,
(the United States)
MIA, YTO, YHZ, YYT
* 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
500 kilometers
The Anthorn signal is
receivable within this
area.
Japan Signals
500 kilometers
Fukuoka/Saga
1,000 kilometers
Signals are receivable in the Taiwan area when reception conditions are good.
China Signal
1,500 kilometers
500 kilometers
Chengdu
Shangqiu
• Signal reception may not be possible at the distances that are futurer than those
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.
About Auto Receive
The watch receives the time calibration signal automatically up to six times a day (five
times for the China 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
1
2
LON
Standard Time
1:00 am
2:00 am
LIS
Daylight Saving Time
2:00 am
3:00 am
PAR
Standard Time
2:00 am
3:00 am
BER
Daylight Saving Time
3:00 am
4:00 am
MAD
ROM
STO
ATH
Standard Time
3:00 am
4:00 am
Daylight Saving Time
4:00 am
5:00 am
5:00 am
MOW
Standard Time
4:00 am
Midnight*
Daylight Saving Time
5:00 am
Near a
Near high-
Among or
construction
tension power
behind
site, airport, or
lines
mountains
other sources
of electrical
noise
Transmitter
Frequency
60.0 kHz
77.5 kHz
68.5 kHz
40.0 kHz
60.0 kHz
60.0 kHz
U.S. Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
500 kilometers
Fukushima
1,000 kilometers
Changchun
Beijing
Shanghai
Hong Kong
Auto Receive Start Times
3
4
5
6
3:00 am
4:00 am
5:00 am
Midnight*
4:00 am
5:00 am
Midnight*
1:00 am*
4:00 am
5:00 am
Midnight*
1:00 am*
5:00 am
Midnight*
1:00 am*
2:00 am*
5:00 am
Midnight*
1:00 am*
2:00 am*
Midnight*
1:00 am*
2:00 am*
3:00 am*
Midnight*
1:00 am*
2:00 am*
3:00 am*
1:00 am*
2:00 am*
3:00 am*
4:00 am*
Your Home City
1
2
HKG
Standard Time
1:00 am
2:00 am
BJS
TYO
Standard Time
Midnight
1:00 am
TPE
SEL
HNL
Standard Time and
Midnight
1:00 am
ANC
Daylight Saving Time
LAX
DEN
CHI
NYC
YVR
YEA
MEX
MIA
YTO
YHZ
YYT
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 14 minutes everyday when the
time in the Timekeeping Mode reaches a calibration time. Do not perform any button
operation within 14 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
your Home City, as kept in the Timekeeping Mode.
To perform manual receive
1. Place the watch on a stable surface so its 12 o'clock
Receiving
side is facing towards a window.
2. In the Timekeeping Mode, hold down A for about two
R (READY)
W (WORK)
seconds until the watch beeps.
3. The digital display will go blank, and the left dial hand
will move to R (READY). This indicates that the watch is
getting ready for time calibration signal reception.
• See the information under "Signal Reception
Troubleshooting" if you experience problems.
• The left dial hand will move to W (WORK) and stay there
while actual reception is in progress.
• If signal reception is unstable during reception, the left
dial hand may move between W (WORK) and
R (READY).
Receive successful
• The hour and minute hands continue to keep time
normally.
• Time calibration signal reception takes from two to
7 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.
• When signal receive operation is successful, GET
appears on the upper display and the lower display
shows the time and date of the successful operation.
The watch will adjust its time setting in accordance to
Receive failed
with the information provided by the signal.
• The watch will return to the Timekeeping Mode if you
press A or if you do not perform any operation for
about one or two minutes.
• ERR will appear on the upper display if the receive
operation is not successful. The watch will not adjust its
time setting in this case. Press A to return to the
Timekeeping Mode.
Note
• To interrupt a receive operation and return to the Timekeeping Mode, press any
button.
To check the latest signal reception results
In the Timekeeping Mode, press A to view the last successful receive time and date.
Press A again to return to the previous screen.
Date
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
Problem
Probable Cause
• You performed some button operation
I can't
receive a
during the auto receive operation.
• The watch is not in the Timekeeping
time
calibration
Mode or World Time Mode.
• The watch is in a location where the
signal.
signal cannot be received for some
reason.
• A countdown timer operation is in
progress.
• Radio interference is often present
during the day time, which can
interfere with calibration signal
reception.
• If the time is one hour off, the DST
Time setting
is incorrect
setting may be incorrect.
• The Home City code setting is not
following
signal
correct for the area where you are
reception.
using the watch.
• The home position of the hands is off.
• For further information, see "Important!" under "Time Calibration Signal Reception"
and "Radio-controlled Atomic Timekeeping Precautions".
Auto Receive Start Times
3
4
5
6
3:00 am
4:00 am
5:00 am
2:00 am
3:00 am
4:00 am
5:00 am
2:00 am
3:00 am
4:00 am
5:00 am
*Next day
Hour : Minutes
What you should do
• Perform manual signal
receive at night or wait until
the next auto signal receive
operation is performed.
• Enter the Timekeeping
Mode or World Time Mode
and try again.
• Enter the Countdown Timer
Mode and stop the
countdown.
• Check to make sure the
watch is in a location where
it can receive the signal.
• Change the DST setting to
Auto DST.
• Select the correct Home
City code.
• Enter the home position
adjustment mode and adjust
the home position.
2
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