Operation Guide 5230
E-29
You can use the procedure under “To turn auto receive on and off” (page E-34) to
x
enable or disable auto receive.
To perform manual receive
In the Timekeeping Mode, hold down
D
until the watch
beeps.
A signal level indicator (
x
L1
,
L2
, or
L3
, see page E-32)
appears in the lower digital dial after reception starts.
Do not move the watch or perform any button operation
until
GET
or
ERR
appears in the right digital dial.
RCVD indicator
Receiving
E-28
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.
x
See “Auto Receive” below for details.
Manual Receive: Perform the operation under “To perform manual receive” on
x
page E-29.
Auto Receive
With Auto Receive, the watch performs the receive operation each day
x
automatically up to six times (up to fi ve 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
x
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 confi guring settings,
while a countdown timer operation is in progress, or while the hands have been
moved for easier viewing of the digital dials (page E-79).
E-27
Signal reception may be diffi cult or even impossible under the conditions
x
described below.
Inside or
among
buildings
Inside a
vehicle
Near
household
appliances,
offi ce
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
E-26
To get ready for a receive operation
Confi rm that the watch is in the Timekeeping Mode. If it isn’t, use
1.
C
to enter the
Timekeeping Mode (page E-38).
The antenna of this watch is located on its 12 o’clock side. Position the watch
2.
with 12 o’clock facing towards a window as shown in the nearby illustration.
Make sure there are no metal objects nearby.
12 o’clock
or
Signal reception normally is better
x
at night.
The receive operation takes from three
x
to eight minutes, but in some cases
it can take as long as 16 minutes.
Take care that you do not perform any
button operation or move the watch
during this time.
E-25
Even when the watch is within range of a transmitter, signal reception may be
x
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 infl uence of the
conditions listed above becomes even greater.
Signal reception may not be possible at the distances noted below during certain
x
times of the year or day. Radio interference may also cause problems with
reception.
Mainfl ingen (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 December 2010, China does not use Daylight Saving Time (DST). If China
x
does go to the Daylight Saving Time system in the future, some functions of this
watch may no longer operate correctly.
E-24
Japanese Signals
Chinese Signal
Fukushima
500 kilometers
1,000 kilometers
Fukuoka/Saga
Signals are receivable in the Taiwan area
when reception conditions are good.
1,500 kilometers
Changchun
500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
E-23
Approximate Reception Ranges
UK and German Signals
North American Signal
Anthorn
500 kilometers
1,500 kilometers
Mainfl ingen
The Anthorn signal is receivable
within this area.
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
E-22
If your Home City Code setting is this:
The watch can receive the signal from the
transmitter located here:
LIS, LON, MAD, PAR, ROM, BER, STO,
ATH, MOW
Anthorn (England), Mainfl ingen (Germany)
HKG, BJS
Shangqiu City (China)
TPE, SEL, TYO
Fukushima (Japan), Fukuoka/Saga (Japan)
HNL, ANC, YVR, LAX, YEA, DEN, MEX,
CHI, NYC, YHZ, YYT
Fort Collins, Colorado (United States)
Important!
The areas covered by
x
MOW
,
HNL
and
ANC
are quite far from the calibration signal
transmitters, so certain conditions may cause reception problems.
When
x
HKG
or
BJS
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
confi gure Home City settings” (page E-42) for information about how to do this.
E-21
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 Date Settings Manually” (page E-48) 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.
E-20
The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch
x
is already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep
state.
The watch will not enter a sleep state while it is in the Stopwatch Mode or
x
Countdown Timer Mode.
To recover from the sleep state
Move the watch to a well-lit area or press any button.
