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Radio Controlled Clock – DCF77
The radio controlled clock shows the most accurate time of the European continent. The radio signal is spread by
the radio waves (77.5 kHz) to the places in the range of 1500 km from Frankfurt am Main in Germany. This radio
clock signal automatically takes into the account the daylight saving time (DST), leap-years and the date changes. To
capture the signal under the normal circumstances (in the save distance from the sources of interference such as TV
sets, PC screens) it lasts several minutes. In case the clock does not capture this signal, proceed the following steps:
1. Relocate the weather station into another place and repeat the DCF signal capture steps.
2. Check the distance of the clock from the sources of interference such as PC screens TV sets. The distance should
be kept at least from 1.5 to 2 meters. Do not put the weather station when capturing the signal close to the metal
doors, window frames or any other metal constructions, objects (washing machines, laundry dryers, refrigerators,
etc.).
3. Within the iron-reinforced concrete construction premises (basements, high building, etc.) depending on the
conditions, the DCF signal reception is weaker. In the extreme cases place the weather station close to the window
into the direction towards the transmitter.
The quality of the DCF 77 radio signal is influenced by the following factors:
• thick walls and insulation, basement and underground premises
• inappropriate local geographic conditions (difficult to estimate)
• atmospheric disorders, storms
• radio interference not suppressed electrical appliances
• TV sets and PCs placed close to the radio receiver DCF
DCF Signal Reception
If the batteries placed in the weather station have sufficient performance, the DCF signal reception and the clock set
happens automatically. The clock receives daily the DCF radio signal from 2.05a.m. till 5.05a.m. and concurrently the
time is being updated. When the signal reception and the time setting is finished, the icon the transmitter is being
displayed. In this case the manual adjustment is not necessary.
Note: During the DCF signal reception do not use any buttons! We recommend to adjust the time during the night hours
when the DCF signal spreads without any obstacles.
Manual Initiation of Capturing the DCF Signal
It is possible to initiate the DCF signal capture at any time by holding button -. The clock immediately starts to search
and capture the DCF signal. This will last for 10 minutes and the transmitter icon will be flashing.
After the signal capture is successful finished, the accurate time will be displayed and the icon of transmitter will
be displayed.
To cancel the reception press button - again.
If the automatic time setting does not happen at 2.05a.m. or not even after pressing the RCC button then it is necessary
to relocate the clock to another place or to set the time manually.
Manual Time Setting
1. Press the SET button and hold it for 3 seconds - the time setting will start.
2. By b or - set:
hour - minute - year - date format - month - day - 12/24h - calendar language.
3. To move from one to another position use the SET button.
4. In case of day light saving time, set the time difference for your region with - button.
You may choose the following options:
ZONE +1 – the time will move 1 hour ahead.
ZONE +2 - the time will move 2 hours ahead.
ZONE -1 – the time will move 1 hour back.
Alarm Clock Setting
1. Press the MODE button, your alarm time will be displayed – AL.
2. Hold the SET button.
3. By b or – set the alarm time.
4. Choose hour then by pressing the SET button choose minutes.
5. Press the SET button again and the setting mode will be off. When pressing the SET button again, the bell icon
will appear - the alarm clock is set. If the SET button is pressed again, the alarm clock will be deactivated. The bell
icon will not be displayed.
Alarm Snooze and the Backlight (SNOOZE/LIGHT)
You can postpone the alarm sound about 5 minutes by pressing the SNOOZE/LIGHT button when the alarm sounds.
The
icon will be flashing.
To cancel the SNOOZE function, press any button at the weather station’s rear side.
The alarm will sound again the next day.
If the SNOOZE is not activated, the alarm sounds for 2 minutes.
To cancel the alarm sound press any button at the rear side.
When pressing the SNOOZE/LIGHT button the display backlight will be activated for 10 seconds.
If the AC adapter is plugged into the weather station the display backlight is permanently on.
Indoor and Outdoor Temperature, Humidity, Temperature Unit
The indoor temperature and humidity is displayed in the field IN.
The outdoor temperature and humidity is displayed in the field OUT.
To change the temperature unit press repeatedly °C/°F button.
The Temperature Trend
The arrow indicates the trend of values of temperature measuring on the station or on the specific sensor.
indication on display
temperature trend
ascending
constant
descendings
Weather Forecast
The weather station forecasts the weather for next 12–24 hours and for around 30 km radius.
The accuracy of the weather forecast is 70–75%.
Because the weather forecast may not always be 100% exact, the manufacturer or the seller cannot be responsible
for any loss caused due to the incorrect forecast.
When you first set or reset the weather station it takes about 24 hours to the station to start correctly predict the
weather forecast.
The displayed icon is valid for the future weather forecast, is does not correspond with the current state of the weather!
The weather station shows 4 icons of the weather forecast:
Sunny
Slightly Cloudy
Cloudy
Rainy
Care and Maintenance
The product has been designed to reliably work for many years when treating it correctly. Here are some tips for
proper operation:
• Before using this product carefully read the user manual.
• Do not expose the product to the direct sunlight, extreme coldness, humidity and sudden temperature changes.
It would decrease the accuracy of perception.
• Do not place the product to locations predisposed to vibration and shock - it can cause damage.
• Do not expose the product to excessive force, shock, dust, high temperature or moisture - this may cause product’s
incorrect functioning, shorter energetic life span, battery damage and deformation of plastic parts.
• Do not expose the product to rain or moisture, unless is designed for the outdoor use.
• Do not place on the product any sources of fire/flame, e. g. burning candle, etc.
• Do not place the product into the area where there is not available a sufficient air flow.
