Casio 5089, MA0908-EA Mode Reference Guide

Operation Guide 5089

Important!

••The areas covered by HNL and ANC are quite far from the calibration signal transmitters, so certain conditions may cause reception problems.

••When HNL or HKG is selected as the Home City, only the time and date are adjusted according to the time calibration signal. You need to switch manually between standard time and daylight saving time (DST) if required. See “To toggle the Home City time between standard time and daylight saving time” for information about how to do this.

To perform manual receive

1.In the Timekeeping Mode, keep Adepressed (for about two seconds) as the x Second Hand goes through the following sequence.

••Moves to YES (or Y for some models) or NO (N) to indicate the last signal reception result, then to READY (R).

2. The x Second Hand indicates the operations the watch is currently performing.

When the x Second	It means this:
Hand is pointed here:

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

	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).

3. The receive operation is complete when the x Second

Hand moves to YES (Y) or NO (N) for about five

seconds, and then resumes regular timekeeping.

••You can return to the Timekeeping Mode manually by

pressing Awhile the x Second Hand is pointing to

YES (Y) or NO (N).

••When the receive operation is successful, the watch

Japanese Signal	Chinese Signal
Fukushima	500 kilometers	Changchun
500 kilometers		Beijing
Fukuoka/Saga		Shangqiu
		Shanghai
		Chengdu
		Hong Kong
1,000 kilometers		1,500 kilometers





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

Timekeeping Mode, press any button.

To check the result of the latest receive operation

In the 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.

••You can return to the Timekeeping Mode manually by pressing Awhile the x Second Hand is pointing to YES (Y) or NO (N).

••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

1.Confirm that the watch is in the Timekeeping Mode. If it isn’t, hold down Cfor about two seconds to enter the Timekeeping Mode.

2.The antenna of this watch is located on its 12 o’clock side. Position the watch with 12 o’clock facing towards a window as shown in the nearby illustration. Make sure there are no metal objects nearby.

••Signal reception normally is better at night.

12 o’clock	••The receive operation takes from two
	to seven minutes, but in some cases
or	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	Inside a	Near	Near a	Near	Among
among	vehicle	household	construction	high-tension	or behind
buildings		appliances,	site, airport,	power lines	mountains
		office	or other
		equipment,	sources of
		or a mobile	electrical
		phone	noise

3.What you should do next depends on whether you are using Auto Receive or 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 Timekeeping Mode time). When any receive operation is successful, none of the other receive operations for that day are performed.

••When a calibration time is reached, the watch will perform the receive operation only if it is in the Timekeeping Mode or World Time Mode. The receive operation is not performed if a calibration time is reached while you are configuring settings.

Note

••The x Second Hand will indicate NO (N) if you have adjusted the time or date setting manually since the latest receive operation.

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

−−While the watch is in the power recovery mode

−−When the watch is in the function sleep state (“Power Saving”)

••A receive operation is cancelled if an alarm sounds while it is being performed.

Mode Reference Guide

Your watch has four “modes”. The 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 Timekeeping Mode

••Perform a time calibration receive operation

••Configure time and date settings manually

Use the stopwatch to measure elapsed time	Stopwatch Mode
••Select one of 29 cities (time zones) around the world and view the
current time there	World Time Mode
••Select daylight saving/summer time (DST) or standard time for a
time zone
Set an alarm time	Alarm Mode

Selecting a Mode

With this watch, everything starts from the Timekeeping Mode.

To determine the watch’s current mode

Check the position of the v Left Dial Hand as shown under “To select a mode”.

	To return to the Timekeeping Mode from any other
	mode
	Hold down Cfor about two seconds until the x Second
	Hand returns to 12 o’clock.

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