Start-up
• Open the battery compartment and insert the batteries (2 x 1,5 V AA), polarity as illu-
strated. The unit is now ready to use.
Radio Controlled Clock
• After start-up the clock will scan the DCF time signal ("
appears permanently when it is received successfully. Important: Buttons will not function
while scanning for DCF unless they are well received or stopped manually.
• The clock automatically scans the time signal at 3.00 a.m. everyday to maintain accurate
timing. For failed reception, scanning stops and repeats again at 4.00 a.m. 5.00 a.m. and
6.00 a.m.
• The clock manually scans the DCF time signal by holding "+(12/24)"- button and "-(C/F)"-
button for 3 seconds. For failed reception, scanning stops and repeats again the next
4 clock hours.
• Press "+(12/24)"- button and "-(C/F)"- button" again to stop scanning.
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• In case the clock cannot detect the DCF-signal (for example due to disturbances, transmit-
• The time base for the radio controlled time is a Caesium Atomic Clock operated by the
" flashes on the LCD). The signal
• The quality of the reception depends greatly on the geographic location. In normal cases,
Please take note of the following:
• Recommended distance to any interfering sources like computer monitors or TV sets is a
ting distance, etc.), the time can be set manually. The clock will then work as a normal
quartz clock. (see "Manual setting of clock and calendar").
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 Main-
flingen near Frankfurt via frequency signal DCF-77 (77.5 kHz) and has a transmitting
range of approximately 1,500 km. Your radio-controlled alarm clock receives this signal
and converts it to show the precise time in summer or wintertime.
there should be no reception problems within a 1,500 km radius around Frankfurt.
minimum of 1.5 - 2 metres.
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