As soon as the signal has been received in sufficient strength, the display also shows
the time, the date and the weekday shortcut.
The alarm clock automatically switches to receiving mode several times every night.
During this process, the displayed time is compared with that received from the time
signal transmitter and, if necessary, corrected.
If a sufficiently strong signal has not been received, the alarm clock will cancel
the receiving process after a few minutes and the radio tower symbol goes out. The
receiving process is started again at a later point in time.
In this case, the time proceeds as usual (beginning with the start time of "00:00").
Checklist when data is missing in the display
1. Check whether the location of the radio alarm clock is suitable, see "Choosing a
location".
2. Restart reception manually, see "Manually starting signal reception".
3. Wait until the alarm clock automatically switches back to receiving mode at a
later time. The reception is usually better at night.
4. Manually perform the settings if reception is not possible at your location, see
"Setting the time and date manually".
Setting the time and date manually
If there is more than approx. 20 seconds between two pushes of a button,
the setting process automatically ends and you will have to repeat it.
Settings you have already made remain saved.
1. Press and hold the time button until "C" flashes in the display.
2. Use the +/– button to set the desired unit of measure for temperature (degrees
Celsius "C" or degrees Fahrenheit "F").
3. Press time in order to save the settings. "24 Hr" flashes in the display for the desired
time format (24-hour or 12-hour display).
4. Proceed as previously described.
− Use the +/– button to set the desired value.
− Press time each time to save the settings.
5. You should set the following:
− Time zone ("00" is a standard setting for mainland Europe).
− Hours
− Minutes
− Date format
− Year
− Month
DCF Radio Alarm Clock CK 1708 | CK 1709
Starting signal reception
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