Casio 3280 Radio Controlled Atomic Timekeeping, Approximate Reception Ranges, l ll, SET, OFF, GET, ERR, GET, TOKYO, MOSCOW, BEIJING, HONOLULU, Important, ANCHORAGE

Operation Guide 3260 3280

To turn Power Saving on and off

	Power saving						1. In the Timekeeping Mode, hold down Auntil SET
							starts to flash and the city name starts to scroll on the
	on indicator
							display.

		l	l	l	ll		• This is the setting screen.
							2. Use Dto display the Power Saving On/Off screen
						l
	l
		l	lll				shown nearby.
	l
l			l				3. Press Eto toggle Power Saving on (On) and off (OFF).
			l
l				l
l
			l				A

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 “Configuring Current Time and Date Settings Manually” (page E-45) for more information.

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

4. Press

to exit the setting screen.

• The Power Saving on indicator (PS) is on the display in all modes while Power Saving is turned on.

If your Home City Name setting is this:

The watch can receive the signal from the transmitter located here:

LISBON, LONDON, MADRID, PARIS, ROME,

BERLIN, STOCKHOLM, ATHENS, MOSCOW

Anthorn (England), Mainflingen (Germany)

HONG KONG, BEIJING	Shangqiu City (China)
TAIPEI, SEOUL, TOKYO	Fukushima (Japan), Fukuoka/Saga (Japan)

E-20

E-21

If your Home City Name setting is this:

The watch can receive the signal from the transmitter located here:

Approximate Reception Ranges

UK and German Signals

North American Signal

HONOLULU, ANCHORAGE, VANCOUVER, LOS ANGELES, EDMONTON, DENVER,

Anthorn2,000 miles

MEXICO CITY, CHICAGO, NEW YORK, HALIFAX, ST. JOHN’S

Important!

Fort Collins, Colorado (United States)

500 kilometers

1,500 kilometers

	The Anthorn signal is	Mainflingen
	receivable within this area	Mainflingen
	receivable within this area

(3,000 kilometers)

600 miles

(1,000 kilometers)

Fort Collins

• The areas covered by MOSCOW, HONOLULU and ANCHORAGE are quite far

from the calibration signal transmitters, so certain conditions may cause reception

Japanese Signals

Chinese Signal

problems.

• When HONG KONG or BEIJING is selected as the Home City, only the time and

500 kilometers

Fukushima

500 kilometers

Changchun

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

configure Home City settings” (page E-40) for information about how to do this.

E-22

Fukuoka/Saga

1,000 kilometers

Signals are receivable in the Taiwan area when reception conditions are good.

	Beijing
	Shangqiu
	Shanghai
	Chengdu
1,500 kilometers	Hong Kong
	E-23

•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 conditions listed above 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 2011, 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.

E-24

To get ready for a receive operation

1.Confirm that the watch is in the Timekeeping Mode. If it isn’t, use Dto enter the Timekeeping Mode (page E-36).

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 three
	12 o’clock	to eight minutes, but in some cases
		to eight minutes, but in some cases
		it can take as long as 16 minutes.
	or	Take care that you do not perform any
	or	button operation or move the watch

during this time.

E-26

3. What you should do next depends on whether you are using Auto Receive or

•When your Home City is TOKYO (which can receive both 40 kHz and 60 kHz signals), the watch first tries to pick up the signal it last successfully received. If that fails, it tries the other signal.

•Using this watch in a country covered by a time calibration that is different from the countries it supports may result in incorrect time indication due to local application of summer time, etc.

E-25

•Signal reception may be difficult or even impossible under the conditions described below.

Inside or	Inside a	Near	Near a	Near	Among or
among	vehicle	household	construction	high-	behind
buildings		appliances,	site, airport,	tension	mountains
		office	or other	power
		equipment,	sources of	lines
		or a mobile	electrical
		phone	noise
					E-27

To perform manual receive

Manual Receive.

• Auto Receive: Leave the watch over night in the location you selected in step 2.

See “Auto Receive” below for details.

• Manual Receive: Perform the operation under “To perform manual receive” on

page E-29.

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.

•You can use the procedure under “To turn auto receive on and off” (page E-33) to enable or disable auto receive.

Receiving

l ll
l	l
l	l
l	l
	ll

Receiving indicator

Receive successful

1.Enter the Timekeeping Mode (page E-36).

2.Hold down E.

•Keep Edepressed until the receiving indicator starts to flash on the display.

•A signal level indicator (L1, L2, or L3; see page

E-31) appears on the display after reception starts. Do not move the watch or perform any button operation until GET or ERR appears.

•If the receive operation is successful, the reception date and time will appear on the display, along

with the GET indicator. The watch will return to the Timekeeping Mode if you press Eor if you do not perform any button operation for about one or two minutes.

E-28

E-29