TFA_No. 60.2545_Anleit_12_22
Radio-controlled alarm clock
• If the clock cannot detect the DCF-signal (e.g. due to interfer-
ence, transmitting distance, etc.), the time can be set manually.
The clock will then work as a normal quartz clock. (see: Manual
settings).
Radio-controlled time reception
The time base for the radio-controlled time is a caesium atomic
clock operated by the Physikalisch Technische Bundesanstalt based
in Braunschweig (Brunswick), Germany. 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 the frequency sig-
nal DCF-77 (77.5 kHz) and has a transmitting range of approxi-
mately 1,500 km.
Therefore, please note the following steps:
• The recommended distance to any interfering sources like com-
puter screens or TV sets is at least 1.5 - 2 meters.
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15.12.2022
14:51 Uhr
Radio-controlled alarm clock
• Within concrete walls (reinforced with steel) such as base-
• During night-time, the atmospheric interference is usually less
5. Operation
5.1 Manual settings
• Press the – button in normal mode to change between °C (Cel-
• Press the SNOOZE/LIGHT sensor button. The backlight turns on
• Press and hold the + or – button in setting mode for fast mode.
• The device will automatically quit the setting mode if no button
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ments, the received signal is naturally weakened. In extreme
cases, please place the unit close to a window to improve
reception.
severe and reception is possible in most cases. A single daily
reception is adequate to keep the accuracy deviation under 1
second.
sius) or °F (Fahrenheit) as temperature units.
for 8 seconds.
is pressed for 20 seconds.
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