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868 MHz RADIO CONTROLLED PROJECTION ALARM CLOCK 

Instructions manual 

INTRODUCTION: 

Congratulations on purchasing this innovative 868MHz Projection alarm clock which 
displays

 indoor and outdoor temperature.

 To enjoy the full benefits of this innovative 

product, please read this operating manual. 
 
 

 
 
 
 
 

 

 

« Instant Trans» is the up and coming state-of-the-art new wireless 
transmission technology, exclusively designed and developed by LA CROSSE 
TECHNOLOGY.  
“IT +” offers you an immediate update of all your outdoor data measured from 
the transmitters: follow your climatic variations in real-time!

 

Summary of Contents for DCF-77

Page 1: ...r temperature To enjoy the full benefits of this innovative product please read this operating manual Instant Transmission is the up and coming state of the art new wireless transmission technology ex...

Page 2: ...with manual setting option 12 24 hours time display hour minutes seconds Time projection hour and minute Projection with adjustable brightness and projection orientation possible Calendar display Bat...

Page 3: ...mperature display E L back light Wireless transmission at 868 MHz Signal reception intervals at 4 seconds Low battery indicator TEMPERATURE TRANSMITTER Remote transmission of outdoor temperature to we...

Page 4: ...finger or other solid object in the space at the bottom center of the battery compartment and lift up to remove the cover 2 Insert batteries observing the correct polarity see marking 3 Replace compa...

Page 5: ...your household voltage is appropriate to the working voltage of the transformer Otherwise your Projection clock may be damaged POWER SUPPLIED BY BATTERIES AND AC DC ADAPTER If the Projection clock is...

Page 6: ...batteries observing the correct polarity see marking 3 Replace the battery cover on the unit Note In the event of changing batteries in any of the units all units need to be reset by following the set...

Page 7: ...displayed after a few seconds remove the batteries and wait for at least 1 minute before reinserting them Once the indoor data is displayed proceed to step 2 2 Within 1 1 2 minutes of activating the...

Page 8: ...han 100 meters see notes on Positioning and 868 MHz Reception 5 If after 10 minutes the DCF time has not been received use the MODE MIN key to manually enter a time and date initially The clock will a...

Page 9: ...ction or changing batteries to transmitter please remove all batteries from the unit and unplug the AC DC adapter from any power source Wait at least for 3 minutes before powering up the Projection cl...

Page 10: ...rature 2 When operating on batteries alone the projection alarm will only project when the SNOOZE button is pressed or the alarm is sounding 3 The projection will auto focus for display from about 1 7...

Page 11: ...me by pressing the key If the Projection clock is battery operated the projection will be ON at the highest brightness level only when the SNOOZE key is pressed The intensity of the brightness level o...

Page 12: ...raunschweig which has a time deviation of less than one second in one million years The time is coded and transmitted from Mainflingen near Frankfurt via frequency signal DCF 77 77 5 kHz and has a tra...

Page 13: ...the DCF tower becomes permanently lit and the time will be displayed DCF reception is done twice daily at 02 00 and 03 00 am If the reception is not successful at 02 00 am then the next reception tak...

Page 14: ...urt transmitter During nighttime the atmospheric disturbances are usually less severe and reception is possible in most cases A single daily reception is adequate to keep the accuracy deviation below...

Page 15: ...the projection brightness at the highest level Exit the setting modes E L Back light On AL HR key Enter alarm setting mode Activate or deactivate alarm Stop alarm and snooze function AL HOUR key MODE...

Page 16: ...ture format setting modes Set the minutes year month 12 24 hour time format C F temperature format Toggle between temperatures seconds alarm time and date display Stop alarm and snooze function E L Ba...

Page 17: ...activate the EL back light MANUAL SETTINGS The following manual settings can be changed when pressing the MODE MIN key for Time zone setting Manual time setting Calendar setting 12 24 Hour setting C F...

Page 18: ...o 12h then 12h to 0h in consecutive 1 hour intervals 3 Confirm with the SNOOZE key and enter the Manual time setting MANUAL TIME SETTING In case the Projection clock cannot detect the DCF signal for e...

Page 19: ...am despite it being manually set When it does receive the signal it will change the manually set time into the received time CALENDAR SETTING The date default of the Projection clock is 1 1 in the yea...

Page 20: ...day digits will start flashing 4 Use the AL HOUR key to set the day and MODE MIN key to set the month 5 Confirm with the SNOOZE key and enter the 12 24 hour time display setting 12 24 HOUR TIME DISPLA...

Page 21: ...set to C degree Celsius To select F degree Fahrenheit 1 The C will be flashing 2 Use the MODE MIN key to toggle between C and F 3 Press the SNOOZE key again to confirm and return to the normal display...

Page 22: ...mode the alarm is activated 2 To toggle between activating and deactivating the alarm press the AL HOUR button briefly Alarm on icon will be displayed next to the time display when the alarm is activ...

Page 23: ...ry 4 seconds The range of the Temperature transmitter may be affected by the temperature At cold temperatures the transmitting distance may be decreased Please bear this in mind when placing the trans...

Page 24: ...mes 3 Using other electrical products such as headphones or speakers operating on the 868MHz signal frequency may prevent correct signal transmission or reception Neighbors using electrical devices op...

Page 25: ...rence levels If no reception is possible despite the observation of these factors all system units have to be reset see Setting up above POSITIONING THE OUTDOOR TEMPERATURE TRANSMITTER The sensor is s...

Page 26: ...he signal is not received relocate the transmitter s or move them slightly as this may help the signal reception The mounting surface can however affect the transmission range If for example the unit...

Page 27: ...the batteries are in contact with conducting materials heat corrosive materials or explosives The batteries shall be taken out from the unit before the product is to be stored for a long period of tim...

Page 28: ...ctric shock should it become exposed Do not expose the units to extreme and sudden temperature changes this may lead to rapid changes in forecasts and readings and thereby reduce their accuracy SPECIF...

Page 29: ...LR6 1 5V Outdoor transmitter 2 x AA IEC LR6 1 5V Battery life cycle approximately 24 months Alkaline batteries recommended Dimensions L x W x H Projection alarm clock 140 3 x 48 5 x 90 6 mm Outdoor t...

Page 30: ...of environment This product must however not be thrown in general rubbish collection points As stated on the gift box and labeled on the product reading the User manual is highly recommended for the...

Page 31: ...d without written consent of the manufacturer R TTE DIRECTIVE 1999 5 EC Summary of the Declaration of Conformity We hereby declare that this wireless transmission device does comply with the essential...

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