Countdown Timer; Radio-Controlled Atomic Timekeeping - Casio 5110 Operation Manual

Operation Guide 5110

Radio-controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly.
• This watch is designed to pick up the time calibration signals transmitted in
Germany (Mainfl ingen), England (Anthorn), the United States (Fort Collins), China
(Shangqiu), and Japan (Fukushima, Fukuoka/Saga).
• See the information under "Signal Reception Troubleshooting" (page E-27) if you
experience problems with time calibration signal reception.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time calibration
signal. You also can perform a manual procedure to set the time and date, when
necessary.
• The fi rst thing you should do after purchasing this watch is to specify your
Home City (the city where you normally will use the watch). For more
information, see "To specify your Home City" on page E-12.
E-10
To specify your Home City
1. In the Timekeeping Mode, hold down A for about fi ve
City code
seconds, until the watch beeps twice and the city code
fl ashes on the upper display. This is the setting mode.
2. Press D (east) and B (west) to select the city code
you want to use as your Home City.
LIS, LON : Lisbon, London
MAD, PAR, ROM, BER, STO : Madrid, Paris, Rome,
ATH
MOW
HKG, BJS, TPE : Hong Kong, Beijing, Taipei
PM indicator Seconds
SEL, TYO : Seoul, Tokyo
Hour : Minutes HNL
ANC
Left dial hand
YVR, LAX : Vancouver, Los Angeles
YEA, DEN : Edmonton, Denver
MEX, CHI : Mexico City, Chicago
E-12
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
six times a day (fi ve times for the Chinese calibration signal). When any auto receive
is successful, remaining auto receive operations are not performed. For more
information, see "About Auto Receive" (page E-21).
• 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" (page E-24).
E-14
• Proper signal reception can be diffi cult or even impossible under the conditions
listed below.
Inside or Inside a Near household
among vehicle appliances,
buildings offi ce
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.
E-16
Approximate Reception Ranges
UK and German Signals
1,500 kilometers
Mainflingen
Anthorn
500 kilometers
The Anthorn signal is
receivable within this
area.
E-18
Berlin, Stockholm
: Athens
: Moscow
: Honolulu
: Anchorage
Near a Near high- Among or
construction tension power behind
site, airport, or lines mountains
other sources
of electrical
noise
U.S. Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
• When using the watch outside the areas covered by the time signal transmitters,
you will have to adjust the current time setting manually as required. See "To set the
time and date manually" (page E-58) for more information about manual time
settings.
• The U.S. time calibration signal can be picked up by the watch while in North
America. The term "North America" in this manual refers to the area that consists of
Canada, the continental United States, and Mexico.
• Using this watch in a country covered by a time calibration signal that is different
from the countries it supports may result in incorrect time indication due to local
application of summer time, etc.
MIA, YTO, NYC : Miami, Toronto, New York
YHZ : Halifax
YYT : St.Johns
3. Press A to exit the setting mode.
• Normally, your watch should show the correct time as soon as you select your
Home City code. If it does not, it should adjust automatically after the next auto
receive operation (in the middle of the night). You also can perform manual
receive (page E-24) or you can set the time manually (page E-58).
• The watch will receive the time calibration signal automatically from the
applicable transmitter (in the middle of the night) and update its settings
accordingly. For information about the relationship between city codes and
transmitters, see page E-17 and "Transmitters" (page E-70).
• See the maps under "Approximate Reception Ranges" (page E-18) for
information about the reception ranges of the watch.
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.
• Make sure the watch is facing the right way.
• 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*
Mainfl ingen (Germany)
HKG, BJS Shangqiu City (China)
Fukushima (Japan)
TPE, SEL, TYO
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.
Japanese Signals
500 kilometers
500 kilometers
Fukuoka/Saga
Fukushima
1,000 kilometers
1,000 kilometers
Signals are receivable in the Taiwan area when reception conditions are good.
Chinese Signal
1,500 kilometers
500 kilometers
Chengdu
Shangqiu
E-11
E-13
12 o'clock
or
E-15
Transmitter Frequency
60.0 kHz
77.5 kHz
68.5 kHz
40.0 kHz
60.0 kHz
60.0 kHz
E-17
Changchun
Beijing
Shanghai
Hong Kong
E-19