TFA 60.2518 Mode D'emploi page 9

TFA_No. 60.2518 Anleitung_01_13
CULT - Radio-controlled alarm clock
Buttons (Fig. 2)
F: mode button
G: AL 1 button
H: ▲ button
I: AL 2 button
J: ▼ button
Housing (Fig. 1+2)
K: IR motion sensor
L: Battery compartment
M: Stand (fold out)
5. Getting started
• Fold out the stand.
• Open the battery compartment and remove the insula-
tion strip. All LCD segments will light up for about 2 sec-
onds. Close the battery compartement again.
• The clock will now scan the DCF frequency signal and the
DCF symbol flashes on the LCD. When the time code is
received successfully after 3-5 minutes, the radio-con-
trolled time is displayed and the DCF symbol is displayed
steadily in the LCD.
• Scanning will be repeated every hour.
• 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 setting of clock and calendar).
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12.03.2013 10:43 Uhr
CULT - Radio-controlled alarm clock
5.1 Radio-controlled time reception
The time base for the radio-controlled time is a caesium
atomic clock operated by the Physikalisch Technische Bunde-
sanstalt Braunschweig. It has a time deviation of less than
one second in one million years. The time is coded and trans-
mitted from Mainflingen near Frankfurt via frequency signal
DCF-77 (77.5 kHz) and has a transmitting range of approxi-
mately 1,500 km. Changeover from summer time or winter
time is automatic. 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:
• 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 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 sin-
gle daily reception is adequate to keep the accuracy devi-
ation below 1 second.
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