Information On Dcf Reception - Conrad S3318P Bedienungsanleitung

10. Information on DCF Reception

The DCF signal is sent by a station in Mainflingen
(near Frankfurt am Main). Its range is up to
1500 km, and under perfect reception conditions
even up to 2000 km.
The DCF signal contains, among others, the
precise time (deviation theoretically 1 second in
one million years!) and the date.
This means you do not have to switch manually
between daylight savings time and normal time;
the time is adjusted automatically.
The first DCF reception attempt is always
performed when the batteries are inserted into
the weather station; see chapter 9.
A DCF reception attempt is performed several times at night (at 02:03, 03:03 and 04:03 AM),
because reception is better then. A single proper reception of the DCF signal per day will keep
the deviation of the quartz clock in the weather station below a second.

Bad reception of the DCF signal may be due to well-shielded rooms and buildings, e.g.
in case of metal vaporised insulation glass windows, coated special wallpaper or
special building construction (reinforced concrete) or in basements.
Reception is also worse if the basis station is close to electrical/electronic devices
(TV, computer), cables or lines. The same applies in case of closeness to large metal
objects (radiator, metal doors, etc.).
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