Casio 5311 Radio Controlled Atomic Timekeeping, HNL, ANC, YES, YES, YES, Note, WORK, READY, READY, HONOLULU, When the, Important, ANCHORAGE, Second Hand, Second Hand

12 o’clock

or

Operation Guide 5311

Radio Controlled Atomic Timekeeping

This watch receives a time calibration signal and updates its time setting accordingly. However, when using the watch outside of areas covered by time calibration signals, you will have to adjust the settings manually as required. See “Confi guring Current Time and Day Settings Manually” (page E-41) for more information.

This section explains how the watch updates its time settings when the city code selected as the Home City is in Japan, North America, Europe, or China, and is one that supports time calibration signal reception.

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If your Home City Code setting is this:	The watch can receive the signal from
	the transmitter located here:
LON (LONDON), PAR (PARIS), ATH (ATHENS)	Anthorn (England), Mainflingen
	(Germany)
HKG (HONG KONG)	Shangqiu City (China)
TYO (TOKYO)	Fukushima (Japan), Fukuoka/Saga
	(Japan)
HNL (HONOLULU), ANC (ANCHORAGE),
LAX (LOS ANGELES), DEN (DENVER), CHI	Fort Collins, Colorado (United States)
(CHICAGO), NYC (NEW YORK)

Important!

ξThe areas covered by HNL (HONOLULU) and ANC (ANCHORAGE) are quite far from the calibration signal transmitters, so certain conditions may cause reception problems.

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Approximate Reception RangesUK and German Signals

Anthorn

500 kilometers

1,500 kilometers

Mainflingen

The Anthorn signal is receivable within this area.

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	Japanese Signals	Chinese Signal
North American Signal	Fukushima	500 kilometers	Changchun
	500 kilometers		Beijing
	Fukuoka/Saga		Shangqiu
2,000 miles			Shanghai
(3,000 kilometers)			Chengdu
600 miles			Hong Kong
(1,000 kilometers)	1,000 kilometers		1,500 kilometers
Fort Collins
			E-23

ξSignal 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)

ξAs of December 2012, 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.

ξUsing 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 daylight saving time (summer time), etc.

To get ready for a receive operation

1.Confi rm that the watch is in the Timekeeping Mode. If it isn’t, hold down Cfor at least two seconds to enter the Timekeeping Mode.

2.Place the watch in a location where signal reception is good.

ξPosition the watch as shown in the nearby illustration, with 12 o’clock

pointed towards a window. Make sure there are no metal objects nearby.

ξ Signal reception normally is better at night.

ξ The receive operation takes from two to 10 minutes, but in some cases it can take as long as

20 minutes. Take care that you do not perform any button operation or move the watch during this time.

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ξSignal 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.

ξAuto Receive: Leave the watch over night in the location you selected in step 2. See “Auto Receive” on page E-27 for details.

ξManual Receive: Perform the operation under “To perform manual receive” on page E-28.

Auto Receive

ξWith 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.

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

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To perform manual receive

1.In the Timekeeping Mode (page E-35), keep Bdepressed (for about two seconds) as the x Second Hand goes through the following sequence.

ξMoves to Y (YES) or N (NO) to indicate the last signal reception result, then to R (READY).

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

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

Note

ξTo 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 B. The x Second Hand will move to Y (YES) or N (NO) to indicate the last calibration signal receive result.

ξ The x Second Hand will move to Y (YES) if the latest

R (READY)	Watch is setting up for reception.
W (WORK)	Reception is in progress.



receive operation was successful, or N (NO) if it was not. After about 10 seconds, regular timekeeping will resume.

	ξ If signal reception is unstable, the x Second Hand may
	move between W (WORK) and R (READY).

ξ When the receive operation is successful, the watch adjusts the time setting accordingly, and then resumes regular timekeeping. It does not adjust the setting if the operation failed.

ξ Press Bto return to regular timekeeping. The watch will also return to regular timekeeping if you do not perform any operation for about 10 seconds.

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