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ALM2/MIN key 

 

  To enter the Alarm 2 setting mode if pressed and held for about 2 seconds 

 

  To set the minutes in manual time setting and alarm setting modes 

 

  To activate/deactivate Alarm 2 

 

  To stop the alarm 

 

  To de-activate the snooze during snooze time   

 

MEMO key 

 

  To display the current Alarm 1 time and the previous three alarm time settings 

 

SNOOZE key 

 

  To activate/de-activate the snooze function 

 

  To display Alarm 2 time when press and hold the key for about 2 seconds 

 

  To exit the manual time setting mode 

 

  To exit the alarm setting mode 

 

  To exit the memory alarm mode 

 

RADIO CONTROLLED TIME 

The time base for the radio-controlled time is a Cesium Atomic Clock operated by the 
Physikalisch Technische Bundesanstalt Braunschweig which has a time deviation of less than 
one second in every one million years. 
The time is coded and transmitted from Mainflingen near Frankfurt via frequency signal DCF-77 
(77.5 khz) and has a transmitting range of approximately 1,500 km. The alarm clock receives this 
signal and converts it to show the precise time and so when within this range the received time is 
completely accurate. 

 

CHECKING FOR DCF-77 RECEPTION 

The alarm clock will automatically start scanning for the DCF-77 frequency signal after the 
battery is inserted. In normal surroundings (for example away from interfering sources such as 
TV sets), it takes between 3 to 5 minutes to receive the signal. If after 10 minutes of inserting the 
battery into the alarm clock and the DCF-77 signal is not received, then check the following list 
before manually setting the time (see 

Manual time setting

 below): 

1.  The distance of the alarm clock should be at least 1.5 - 2.0 meters away from interfering 

sources such as computer monitors or TV sets. 

2.  Avoid placing the alarm clock onto or in the immediate proximity of metal doors, window 

frames or structures. 

Summary of Contents for DCF-77

Page 1: ...display in degree Celsius Back light SETTING UP 1 First slide to open the battery cover at the back of the alarm clock as indicated above 2 Checking the correct polarization insert 1 x AA IEC LR6 1 5V...

Page 2: ...he Memo Alarm clock can toggle and display information of time indoor temperature seconds and date when pressing the MODE key FUNCTION KEYS The alarm clock has five easy to use function keys MODE key...

Page 3: ...ed and transmitted from Mainflingen near Frankfurt via frequency signal DCF 77 77 5 khz and has a transmitting range of approximately 1 500 km The alarm clock receives this signal and converts it to s...

Page 4: ...ceived by the alarm clock which is displayed accordingly in the calendar section of the LCD Alarm Time Display MANUAL TIME SETTING MODE In some cases after inserting the battery the alarm clock may no...

Page 5: ...ounding and the alarm will snooze from the start of next minute for 6 full minutes before automatically sounding again When the alarm is snoozing the alarm icon 1 or 2 will start flashing indicating t...

Page 6: ...ATTERIES For optimum running accuracy batteries should be replaced at least once a year or when the LCD contrast becomes dim or unclear Immediately remove all low powered batteries to avoid leakage an...

Page 7: ...ate reading takes place This product is not to be used for medical purposes or for public information The specifications of this product may change without prior notice This product is not a toy Keep...

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