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Casio G-Shock GW800-1V Operation Manual page 2

Casio g-shock gw800-1v: user guide
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Operation Guide 3050 3061
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
Inside a
Near
among
vehicle
household
buildings
appliances,
office
equipment,
or a mobile
phone
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from one to seven minutes, but in some
cases it can take as long as 13 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. If you use the watch in Japan or Europe
(each of which has two different transmitter locations), it will try to receive the time
calibration signal from one of the transmitters in your current location. If it cannot
receive the signal, it will then try to receive the time calibration signal from the other
transmitter.
Home City Codes and Transmitters
Home City Code
Transmitter
LIS, LON,
Rugby (England)
MAD, PAR, ROM, BER,
Mainflingen (Germany)
STO, ATH, MOW*
HKG*, BJS*, TPE,
Fukushima (Japan)
SEL, TYO
Fukuoka/Saga (Japan)
HNL*, ANC*, YVR,
LAX, YEA, DEN, MEX,
Fort Collins, Colorado
YWG, CHI, MIA, YTO,
(the United States)
NYC,YHZ, YYT
* The areas covered by the MOW, HKG, BJS, HNL, and ANC city codes are quite
far from the time calibration signal transmitters, and so certain conditions may
cause problems with signal reception.
Reception Ranges
U.K. and German Signals
1,500 kilometers
Mainflingen
Rugby
500 kilometers
500 kilometers
Fukuoka/Saga
1,000 kilometers
Japan Signal
• 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 Rugby (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)
• 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 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
1
LIS, LON
Standard Time
1:00 am
Daylight
2:00 am
Saving Time
MAD, PAR, ROM,
Standard Time
2:00 am
BER, STO
Daylight
3:00 am
Saving Time
ATH
Standard Time
3:00 am
Daylight
4:00 am
Saving Time
MOW
Standard Time
4:00 am
Daylight
5:00 am
Saving Time
HKG, BJS, TPE,
Standard Time
Midnight
SEL, TYO
HNL, ANC, YVR,
Standard Time
LAX, YEA, DEN,
Daylight
MEX, YWG, CHI,
Midnight
Saving Time
MIA, YTO, NYC,
YHZ, YYT
Near a
Near high-
Among or
construction
tension
behind
site, airport,
power lines
mountains
or other
sources of
electrical
noise
Frequency
60.0 kHz
77.5 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
2
3
4
5
6
2:00 am
3:00 am
4:00 am
5:00 am
Midnight
next day
3:00 am
4:00 am
5:00 am
Midnight
1:00 am
next day
next day
3:00 am
4:00 am
5:00 am
Midnight
1:00 am
next day
next day
4:00 am
5:00 am
Midnight
1:00 am
2:00 am
next day
next day
next day
4:00 am
5:00 am
Midnight
1:00 am
2:00 am
next day
next day
next day
5:00 am
Midnight
1:00 am
2:00 am
3:00 am
next day
next day
next day
next day
5:00 am
Midnight
1:00 am
2:00 am
3:00 am
next day
next day
next day
next day
Midnight
1:00 am
2:00 am
3:00 am
4:00 am
next day
next day
next day
next day
next day
1:00 am
2:00 am
3:00 am
4:00 am
5:00 am
1:00 am
2:00 am
3:00 am
4:00 am
5:00 am
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 one to five minutes everyday when the
time in the Timekeeping Mode reaches each of the calibration times. Avoid
performing any button operation within five minutes before or after any one of 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.
• Calibration signal reception is disabled while a countdown timer operation is
in progress.
About the Receiving Indicator
The receiving 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.
Weak
(Level 0)
Receiving indicator
• Use the receiving indicator as a guide for checking signal strength and for finding the
best location for the watch during signal receive operations.
• Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receiving indicator to indicate signal strength.
Transmitter Indicator
During signal reception, a transmitter indicator will flash to
Module 3050 (A)
show you which signal is currently being received by the
watch. After signal reception is complete, the indicator of
the transmitter from which the signal was received will
remain on, without flashing.
• The following shows the meaning of each of the
transmitter indicator names.
Module 3050 (B)
JP40: Fukushima (Japan)
JP60: Fukuoka/Saga (Japan)
US60: Fort Collins, Colorado (the United States)
GE77.5: Mainflingen (Germany)
UK60: Rugby (England)
• The transmitter indicator turns off automatically at the
Module 3061
start of the first auto receive operation of a new day. The
time of the first auto receive operation of a new day
depends on your currently selected Home City.
To perform manual receive
1. Enter the Timekeeping Mode.
Receiving
2. Place the watch on a stable surface so its 12 o'clock
side is facing towards a window.
3. Hold down D for about two seconds until RC! appears
on the display.
• The indicator of the transmitter whose signal the watch
is attempting to receive will flash.
Transmitter indicator
• Time calibration signal reception takes from one to five
minutes. Take care that you do not perform any button
Receive successful
operations or move the watch during this time.
Receive time
• If the receive operation is successful, the reception date
and time appear on the display, along with the GET
indicator.The indicator of the transmitter whose signal
the watch received will also be indicated.
The watch will enter the Timekeeping Mode if you press
C or if you do not perform any button operation for
Receive date
about two or three minutes.
• If the current reception fails but a previous reception was
Receive failed
successful, the display shows the previous reception's
date and time, and the ERR indicator.
- - : - - indicates that none of the reception operations
were successful.
The watch will enter the Timekeeping Mode without
changing the time setting if you press C or if you do not
perform any button operation for about two or three
minutes.
To turn auto receive on and off
1. In the Timekeeping Mode, press D to display the Last
Signal screen.
2. Press A so the current auto receive setting (on or
OFF) is flashing. This is the setting screen.
• Note that the setting screen will not appear if the
currently selected Home City is one that does not
support time calibration reception.
3. Press D to toggle auto receive on (on) and off (OFF).
On/Off status
4. Press A to exit the setting screen.
• For information about city codes that support signal
receive, see "To specify your Home City".
To check the latest signal reception results
In the Timekeeping Mode, press D to display the Last
Signal screen.
• When receive is successful, the display shows the time
and date that receive was successful. - - : - - indicates
that none of the reception operations were successful.
• To return to the Timekeeping Mode, press C.
Receive date
Receive time
Strong
(Level 3)
2

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