47
General description
A.
Display
B.
SNOOZE/LIGHT
C.
MODE button
D.
Alarm button
E.
Up [+] button
F.
Down [-] button
G.
Wave button
H.
Battery compartment
Mounting and changing of batteries
The radio-controlled alarm clock takes 2 AAA 1.5V batteries. When the icon
for change of battery (a small battery) is displayed, it is time to change
the batteries.
To insert batteries remove the battery cover on the battery compartment
(H) on the back of the clock. Replace the old batteries with new ones. Make
sure to position the batteries with the +pole and the –pole as shown in the
battery compartment. Mount the battery cover. You will now hear a short
beep-sound. Subsequently, the following will be displayed:
A
B
C D E F G
H
•
The clock reads 0:00 midnight and the date is 1.1.
•
The clock starts to search for the radio signal. The aerial signal
flashes and shows the reception quality.
•
After about 3 to 10 minutes (when the aerial icon stops flashing),
time and date have been set correctly, if the clock has received a
radio signal.
•
If it is not possible to receive a radio signal, the clock can be set
manually (see the relevant section in the instruction manual). Under
all circumstances, every full hour 01:00, 02:00, 03:00, 04:00 and
05:00 the clock will search for a radio signal. The search for a radio
signal can also be activated by pressing the WAVE button (G) for 3
seconds until the aerial icon starts flashing.
Brief explanation of the preconditions for radio signal reception
The radio-controlled alarm clock is set to receive a radio signal from a
transmitter in Frankfurt, Germany (DCF77). The transmitter, which is
based on a caesium-driven atomic clock from the Braunschweig Physical/
Technical Institute, covers an area with a radius of approximately 1500
km, i.e. the entire central Europe and the southern parts of Sweden and
Norway.
Successful reception of the radio signal depends on the distance between
the transmitter and the clock and on the position of the clock inside the
house or apartment. Insufficient signal intensity or extreme electronic
noise may prevent the clock from receiving a signal.
The main reasons why the clock does not receive a signal could be:
•
Buildings with very thick walls or constructions containing steel
or reinforced concrete.
•
The clock is placed close (within 1.5 metres) to electric units such
as TV sets, PC screens or similar.
•
The transmitter is temporarily out of service due to maintenance,
thunder storm or similar.
•
The clock is placed outside the transmitter’s range (outside a
radius of about 1500 km from the transmitter).
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