no symbol - no reception / time is manually set
•
When the time code is received successfully after 2-12 minutes, the radio-controlled time and the
DCF
sym
bol are displayed steadily in the display. The
other
buttons
are
activated permanently.
•
You can start the initialization manually.
•
Press and hold the -/RCC button
for
3
seconds
. The DCF symbol will be flashing.
•
Interrupt the reception by pressing the -/RCC button again. The DCF symbol disappears.
•
The DCF reception always takes place hourly between 2:00 and 5:00 o'clock in the morning. If the
recept
ion
is not successfully received until 5:00 o'clock, the next receive operation is again at 2:00
o'clock in the
morn
ing.
There are three different reception symbols:
flashing
- reception is active
stays
- reception is very good
•
If the clock cannot detect the DCF-signal (for example due to disturbances, transmitting distance,
etc.),
the
time can be set manually. The DCF symbol disappears and the clock will then work as a
normal quartz
clock
.(see: Manual settings).
NOTE:For WWVB,the area A2(fig.1) display WWVB symbol,the RCC reception same as DCF.
6.3.1 Note for radio-controlled time DCF
The time base for the radio-controlled time is a caesium atomic clock operated by the Physikalisch
Techni
sche
Bundesanstalt Braunschweig.It has a time deviation of less than one second in one million
years. The
time
is
coded and transmitted from Mainflingen near Frankfurt via frequency signal DCF-77
(77.5 kHz)and has
a
trans
mitting range of approximately 1,500 km.Your radio-controlled clock receives
this signal and conve
rts it
to
show the precise time. Changeover from summer time or winter time is
automatic. In Daylight Sav
ing Time
"
D
ST" is shown on the LCD. The quality of the reception depends
mainly on the geographic location.
Normally
there should be no reception problems within a 1,500 km
radius around Frankfurt.
Please take note of the following:
•
The recommended distance to any interfering sources like computer monitors or TV sets at least
1
.
5
-
2
meters.
•
Inside ferro-concrete rooms (basements,superstructures),the received signal is naturally weakened.
In
extreme cases, please place the unit close to a window to improve the reception.
•
During night-time, the atmospheric interference is usually less severe and reception is possible in
most
cases
.A single daily reception is adequate to keep the accuracy deviation under 1 second.
•
During the operation, all successful settings will be confirmed by a brief beep tone.
•
The device will automatically quit the setting mode if no button is pressed for a long period of time.
•
Press and hold the -/RCC or +/
°
C
/
°
F
button in the setting mode for fast running.
7.1 Manual settings
•
H
old the
MODE
button in normal mode for t
hree
seconds, to enter the setting mode.
•
The setting sequence is shown as follows:
second
-
hour
-
minute
-
year
-
month
-
date
-
week
language
-
12 or 24 hours system (24H default)-
time
zone
.
•
Press the -/RCC or +/
°
C/
°
F
button to
increase
or
decrease
for
setting
.
•
Press
and
hold
the
-/
RCC
or
+/
°
C
/
°
F
button
for
fast
running
.
•
Confirm the setting with the
MODE
button
or
no
button
pressed
in
20
seconds
.
•
The manually set time will be overwritten by the DCF time when the signal is received successfully.
7. Operation
-4-
