TFA 60.2542 Bedienungsanleitung Seite 14

TFA_No. 60.2542_Anleitung
Radio-controlled alarm clock
• Press the WAVE button.
• The clock will now scan the DCF frequency signal and the
DCF symbol will be flashing on the display.
• To end the DCF reception attempt, press the WAVE button
again. The DCF reception symbol disappears.
• There are three different reception states:
flashing - reception is active
solid - reception is very good
no symbol - no DCF reception
• If the clock cannot detect the DCF-signal (e.g. due to inter-
ference, transmitting distance, etc.), the time can be set
manually.
• The clock will then work as a normal quartz clock. (see:
Manual settings).
Note on radio-controlled time
The time base for the radio-controlled time is a caesium atom-
ic clock operated by the Physikalisch Technische Bunde-
sanstalt based in Braunschweig (Brunswick), Germany. It has
a time deviation of less than one second in one million years.
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29.08.2017 13:37 Uhr Seite 14
Radio-controlled alarm clock
The time is coded and transmitted from Mainflingen near
Frankfurt via the frequency signal DCF-77 (77.5 kHz) and has a
transmitting range of approximately 1,500 km. The adjustment
to Daylight Saving Time (summer/winter time) is automatic. In
Daylight Saving Time DST is shown on the display. The recep-
tion quality depends mainly on geographic location. Normally
there should be no reception problems within a 1,500 km
radius around Frankfurt.
Therefore, please note the following steps:
• The recommended distance to any interfering sources like
computer screens or TV sets is at least 1.5 - 2 meters.
• Within concrete walls (reinforced with steel) such as base-
ments, the received signal is naturally weakened. In extreme
cases, please place the unit close to a window to improve
reception.
• During night-time, 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 devia-
tion under 1 second.
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