Casio 5073 Mode Reference Guide

Operation Guide 5073

Approximate Reception Ranges

UK and German Signals

Anthorn 500 kilometers

1,500 kilometers

Mainflingen

The Anthorn signal is receivable within this area.

Japanese Signal

Fukushima

500 kilometers

Fukuoka/Saga

1,000 kilometers

North American Signal

2,000 miles

(3,000 kilometers)

600 miles

(1,000 kilometers)

Fort Collins

Chinese Signal

500 kilometers	Changchun
	Beijing
	Shangqiu
	Shanghai
	Chengdu
	Hong Kong
	1,500 kilometers

To perform manual receive

1.In the regular timekeeping mode, keep Adepressed (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).

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

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

••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.

••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.Check to make sure the watch is in the regular timekeeping mode. If it isn’t, hold down Cfor about two seconds to enter the regular timekeeping mode.

2.The antenna of this watch is located on its 6 o’clock side. Position the watch with 6 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.
6 o’clock	••The receive operation takes from
	two to seven minutes, but in some
	cases it can take as long as 14
or	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 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.

••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)	Regular timekeeping mode
settings
••Perform a time calibration receive operation
••Configure time and date settings manually
••Select one of 29 cities (time zones) around the world and
view the current time there.	World Time setting mode
••Select daylight saving/summer time (DST) or standard time
for a time zone

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 Cfor about two seconds until the x Second

Hand stops and then starts moving again.

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