Rock Mars DD-6442BT, Instruction Manual

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1. Be careful while using the GPS system. The navigation function is for reference only, use it for
position, distance, location, terrain, etc..
2. During the first GPS satellite positioning, please stay at the same location, preferably open area
without any shelter. It may need more than two minutes to locate position, depending on the
surrounding and satellite signal strength.
3. For your safety, please finish the navigation setup before going out on the road. Do not operate
the system while driving since this may lead to a traffic accident.
4. When passing through a tunnel, or the car is in a building, in an underpass, climatic
factors, surrounding tall obstacles, nearby mobile phone base stations will cause satellite signal
reception quality to be affected, the system may be temporarily unable to provide you with
positioning and navigation. While leaving the sources of influence, you can quickly restore the
positioning and navigation.
5. Please note that any wireless telecommunication products are likely to interfere with satellite
reception, resulting in signal reception instability.
6. Path planning is for reference only. The route may be adjusted according to the local
traffic situation. Please be sure to account for current road situation and traffic rules.
7. Before using GPS, set the GPS file path. Choose '.exe' file and then click
GPS navigation system(optional)
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Caution: