TFA Dostmann 60.2530.02 Instrucciones De Uso página 9

TFA_No. 60.2530_anl_08_17
Radio-controlled alarm clock
3.1 Reception of the DCF frequency signal
• The clock will now scan the DCF frequency signal and the DCF symbol will be flashing
on the display. When the time code is received successfully after 3-8 minutes, the radio-
controlled time, the date, the day of the week and the DCF symbol are displayed steadi-
ly on the display.
• You can start the initialization manually.
• Press and hold the ▼/FUNK button for three seconds.
• The DCF reception symbol will be flashing. If the reception is not successful, the next
reception takes place automatically the next hour.
• Interrupt the reception by pressing the ▼/FUNK button again for three seconds. The
DCF symbol disappears.
• The DCF reception always takes place daily at 2:00 and 3:00 or at 4:00 and 5:00
o'clock in the morning. If the reception is not successfully received until 5:00 o'clock, the
next receive operation is again at 2:00 o'clock in the morning.
• There are three different reception symbols:
flashing
stays
No symbol
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– reception is active
– reception is very good
– no reception/reception is deactivated/
set time manually
Radio-controlled alarm clock
• If the clock cannot detect the DCF-signal (for example due to disturbances, transmitting
distance, etc.), the time can be set manually. The DCF symbol disappears and the clock
will then work as a normal quartz clock. (see: Manual settings).
3.1.1 Note for radio-controlled time DCF
The time base for the radio-controlled time is a caesium atomic clock operated 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. Your radio-controlled clock receives this signal and converts it to show the precise time.
Changeover from summer time or winter time is automatic. In Daylight Saving Time DST is
shown on the display. 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 monitors or TV
sets is at least 1.5 - 2 meters.
• Inside ferro-concrete rooms (basements, superstructures), the received signal is natu-
rally weakened. In extreme cases, please place the unit close to a window to improve
the reception.
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