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TFA_No. 35.1151_Anl_03_23
14.03.2023
MONDO – Wireless weather station
6.3 Note on radio-controlled time
The time base for the radio-controlled time is a caesium atomic clock operated by the Physikalisch Technische Bundes-
anstalt based in Braunschweig (Brunswick), Germany. It has a time deviation of less than one second in one million years.
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. Your radio clock receives the signal, converts it and always shows the exact time.
The adjustment to Daylight Saving Time (summer/winter time) is automatic. The reception quality depends mainly on geo-
graphic 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 basements, 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 single daily
reception is adequate to keep the accuracy deviation under 1 second.
7. Backlight
7.1 Battery operation
• Press any button to temporarily activate the backlight.
• You can select between two levels of brightness with the SNOOZE/LIGHT button (HI/LO).
• Press the SNOOZE/LIGHT button to activate the backlight briefly. The default setting is HI.
• Press the SNOOZE/LIGHT button once again to dim the backlight.
7.2. Adapter operation (optional)
• Attention: Continuous illuminated backlight only works when using the power adapter.
• Press SNOOZE/LIGHT button once to dim the backlight.
• Press SNOOZE/LIGHT button once more to turn off the backlight.
• The sequence is shown as follow: HI – LOW - OFF.
8. Operation
• The device will automatically quit the setting mode if no button is pressed for a few seconds.
• Press and hold the UP or DOWN button in setting mode for fast mode.
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MONDO – Wireless weather station
8.1 Manual settings
• Press and hold the MODE button in normal mode for three seconds to enter the setting mode.
• The time zone (00 = default) will be flashing on the display.
• Press the UP or DOWN button to make the time zone correction (+12/-12).
• The time zone correction is needed for countries where the DCF signal can be received but the time zone is different from
the DCF time (e.g. +1=one hour plus).
• Press the MODE button to make the settings in the following sequence: Hour, minutes, year, month, day and the language
of the day of the week. Press UP or DOWN button to adjust it.
• Confirm the setting with the MODE button.
• The manually set time is overwritten once the DCF time signal is successfully received.
8.1.1 Day-of-week language setting
• In the setting mode you can choose the day-of-the-week language.
• Press the UP or DOWN button.
• In the display appears: German - GER (default), French - FRE, Italian - ITA, Dutch - DUT, Spanish - SPA, Danish - DAN and
English - ENG.
• Confirm the setting with the MODE button.
8.2 24- or 12-hour system setting
• In normal mode you can choose between the 12 HR or 24 HR system.
• Press the DOWN button.
• In the 12-HR system PM (after noon) appears on the display.
8.3 Temperature unit setting
• In the normal mode you can change between °C (Celsius) or °F (Fahrenheit) as temperature unit.
• Press the UP button
9. Alarm clock function
• Press the MODE button in normal mode.
• AL1 and 6:00 (default) or the last adjusted alarm time appear on the display.
• Press and hold the MODE button for 3 seconds.
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