TFA BINGO Bedienungsanleitung Seite 13

TFA_No. 60.2528_Anl_11_21
BINGO - Radio-controlled alarm clock
• The device will alert you with a beep and all LCD segments will be dis-
played for a short moment.
• The clock will now scan the DCF frequency signal and the DCF symbol
will be flashing on the LCD. When the time code is received successfully
after 3-8 minutes, the radio-controlled time, the date and the DCF symbol
are displayed steadily in the LCD.
• The DCF reception always takes place at 3:00 o'clock in the morning. If the
reception is not successfully received at 3:00 o'clock, it shall be held fur-
ther attempts at 4:00 and 5:00 o'clock.
• You can also start the initialization manually.
• Press and hold the – button for three seconds.
• The DCF symbol will be flashing.
• To end the reception, press and hold the – button for three
seconds again. The DCF symbol disappears.
• There are three different reception symbols:
flashes - reception is active
stays - reception is good
no symbol - no reception/reception is deactivated
• If the clock cannot detect the DCF-signal (for example due to disturbances,
transmitting distance, etc.), the time can be set manually. The clock will
then work as a normal quartz clock. (see: Manual settings).
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22.11.2021 15:09 Uhr Seite 13
BINGO - Radio-controlled alarm clock
Radio-controlled time reception
The time base for the radio-controlled time is a caesium atomic clock operat-
ed by the Physikalisch Technische Bundesanstalt Braunschweig. 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 frequency signal DCF-77
(77.5 kHz) and has a transmitting range of approximately 1,500 km.
Changeover from summer time or winter time is automatic. In Daylight Sav-
ing Time is shown on the LCD. The quality of the reception depends
mainly on the geographic location. Normally there should be no reception
problems within a 1,500 km radius around Frankfurt.
Please take note of the following:
• The recommended distance to any interfering sources like computer mon-
itors or TV sets is at least 1.5 - 2 meters.
• Inside ferro-concrete rooms (basements, superstructures), the received
signal is naturally weakened. In extreme cases, please place the unit close
to a window to improve the reception.
• During nighttime, the atmospheric interference is usually less severe and
reception is possible in most cases. A single daily reception is adequate to
keep the accuracy deviation under 1 second.
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