Casio 5073 Operation Manual Download Page 2

Operation Guide 5073

2

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

Japanese Signal

Fukushima

500 kilometers

1,000 kilometers

Fukuoka/Saga

Chinese Signal

1,500 kilometers

Changchun

500 kilometers

Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong

 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

 Check to make sure the watch is in the regular timekeeping mode. If it isn’t, hold 

1. 

down 

C

 for about two seconds to enter the regular timekeeping mode.

 The antenna of this watch is located on its 6 o’clock side. Position the watch with 

2. 

6 o’clock facing towards a window as shown in the nearby illustration. Make sure 

there are no metal objects nearby.

6 o’clock

or

 Signal reception normally is better 

 

at night.
 The receive operation 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 operation or 

move the watch during this time.

 Signal reception may be difficult or even impossible under the conditions 

 

described below.

Inside or 

among 

buildings

Inside a 

vehicle

Near 

household 

appliances, 

office 

equipment, 

or a mobile 

phone

Near a 

construction 

site, airport, 

or other 

sources of 

electrical 

noise

Near 

high-tension 

power lines

Among 

or behind 

mountains

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

3. 

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.

To perform manual receive

 In the regular timekeeping mode, keep 

1. 

A

 depressed (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).

 The 

2. 

x

 

Second Hand

 indicates the operations the watch is currently performing.

@

When the 

x

 

Second 

Hand

 is pointed here:

It means this:

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

).

 The receive operation is complete when the 

3. 

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

.

 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) 

 

settings

Perform a time calibration receive operation

 

Configure time and date settings manually

 

Regular timekeeping mode

Select one of 29 cities (time zones) around the world and 

 

view the current time there.

Select daylight saving/summer time (DST) or standard time 

 

for a time zone

World Time setting mode

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 

C

 for about two seconds until the 

x

 

Second 

Hand

 stops and then starts moving again.

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Summary of Contents for 5073

Page 1: ...ch s power level by observing the movement of the x Second Hand If the x Second Hand is moving normally at one second intervals power is at Level 1 If the x Second Hand is moving at two second intervals power is at Level 2 which is quite low Expose the watch to light as soon as possible so it can charge Level Hand Movement Function Status 1 Normal All functions enabled 2 x Second Hand moves at two...

Page 2: ...e regular timekeeping mode keep 1 A depressed 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 The 2 x Second Hand indicates the operations the watch is currently performing When the x Second Hand is pointed here It means this READY R Watch is setting up for reception WORK W Reception ...

Page 3: ...er all the settings are the way you want press 3 A to return to regular timekeeping B 5 6 B Note After you specify a city code the watch will use UTC offsets to calculate the World Time based on the current time in your Home City Coordinated Universal Time the world wide scientific standard of timekeeping The reference point for UTC is Greenwich England Selecting some city codes automatically make...

Page 4: ...ep 3 of this procedure until the hands stop moving Hold down 3 A for about two seconds until the short end of the v Day of the Week Hand toggles to STD standard time or DST daylight saving summer time Note that you cannot switch between STD standard time DST daylight saving summer time while UTC is selected as the World Time City Note that the STD standard time DST daylight saving summer time sett...

Page 5: ...he x Second Hand starts moving normally at one second intervals The x Second Hand starts to move at one second intervals but then suddenly returns to moving at two second intervals The watch probably is not sufficiently charged yet Continue keeping it exposed to light B 6 5 Time Calibration Signal The information in this section applies only when LON PAR ATH HNL ANC LAX DEN CHI NYC HKG or TYO is s...

Page 6: ...aia 1 UTC 0 LON London PAR Paris 1 ATH Athens 2 City Code City UTC Offset GMT Differential JED Jeddah 3 THR Tehran 3 5 DXB Dubai 4 KBL Kabul 4 5 KHI Karachi 5 DEL Delhi 5 5 DAC Dhaka 6 RGN Yangon 6 5 BKK Bangkok 7 HKG Hong Kong 8 TYO Tokyo 9 ADL Adelaide 9 5 SYD Sydney 10 NOU Noumea 11 WLG Wellington 12 Based on data as of December 2008 The rules governing global times GMT differential and UTC off...

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