About The Time Signal Transmitter Dcf77 - ADE CK 1701 Bedienungsanleitung

‚ Temporary shutoffs of the transmitter can sometimes
happen, e.g. because of maintenance work.

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 display shows the date and time.
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 device continues to run precisely and
then switches to receiving mode again at the next scheduled
time.
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DCF Radio-controlled alarm clock CK 1701