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The time is transmitted by a cesium atomic radio clock, which the
Physikalisch Technische Bundesanstalt is operated in Braunschweig. The deviation is
less than 1 second in a million years. The time is encoded and is recorded by Mainflingen
near
Frankfurt am Main transmitted by a DCF-77 (77.5 kHz) frequency signal with a range of
approx. 1,500 km. Your logger receives the signal, converts it and always shows the exact
time. Also the
Summer and winter time are changed automatically. The reception depends mainly on
the geographical location. Normally, within a radius of 1,500 km from
Frankfurt no problems arise during the transfer. It is recommended to keep a
distance of at least 1.5 - 2 meters too
distance of at least 1.5 - 2 meters too
distance of at least 1.5 - 2 meters too
possibly interfering devices such as computer screens and
The signal received is naturally weaker in reinforced concrete structures (basements,
superstructures). In extreme cases it is recommended to place the device near the window
and / or by turning the radio signal
At night, the atmospheric disturbances are usually less and reception is possible in most
cases. A single reception per day is enough to ensure accuracy and discrepancies
Note:
Television sets.
to receive better.
to keep under 1 second.
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