TFA 60.2511 Bedienungsanleitung Seite 11

TFA_No. 60.2511_Anleitung_ 19.07.2010
Radio controlled alarm
Housing
10. Battery compartment
3. Getting started
• Open the battery compartment and insert the batteries 2 x 1.5 V AAA, polarity as illustrated.
• A short beep will sound and all LCD segments will light up for about a few seconds.
• The clock will scan the DCF frequency signal and the DCF symbol flashes on the LCD. When
the signal is received successfully after 3-5 minutes, the radio controlled time and the DCF
symbol appear permanently.
• The clock automatically receives every day at 2:00 and 3:00 in the morning a radio signal. If
the reception fails, the symbol disappears and scanning stops and will be repeated at 4.00
am and 5.00 am.
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11:20 Uhr Seite 11
Radio controlled alarm
• Manual initialization can be helpful. Press and hold ▼ and ▲ button at the same time. A
short beep will sound and the symbol is flashing. If the reception fails, the symbol dis-
appears and scanning stops and will be repeated in the next three hours (three times).
• Press and hold ▼ and ▲ button at the same time, to stop the initialization and the DCF-
reception symbol disappears.
• In case the clock cannot detect the DCF-signal (for example due to disturbances, transmit-
ting distance, etc.), the time can be set manually. The clock will then work as a normal
quartz clock. (see: Setting of clock and calendar).
Radio controlled time reception:
The time base for the radio controlled time is a Caesium Atomic Clock operated by the
Physikalisch Technische Bundesanstalt Braunschweig which 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 1500 km.
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