ADE CK 2306 Instrucciones De Operación página 38

Setting up the radio-controlled alarm
clock
− Place or hang the radio-controlled alarm clock
as close to the window as possible. The device
usually receives the strongest signal there.
About the time signal
transmitter DCF77
This radio-controlled alarm clock receives its radio
signals from the time signal transmitter DCF77.
This broadcasts the precise and official time of the
Federal Republic of Germany on the long-wave
frequency of 77.5 kHz. The transmitter is located in
Mainflingen near Frankfurt am Main and, with its
range of up to 2000 km, supplies the majority of
radio-controlled clocks in western Europe with the
necessary radio signals.
As soon as the radio-controlled alarm clock is
supplied with power, it switches to reception and
searches for the signal from the transmitter DCF77.
If the time signal is received in sufficient strength,
the time is displayed.
The radio-controlled alarm clock switches on
several times a day and synchronises the time with
the radio signal from the transmitter DCF77. In
the event the signal is not received, e.g. during a
strong storm, the clock continues to run precisely
and then switches to receiving mode again at the
next scheduled time.
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CK 2306 DCF radio-controlled alarm clock