First, you can not directly use the computer USB to charge the navigator, most of the demand current is relatively large, generally above 1.5A, and the current of the USB interface is generally 0.5A, the current is too small to cause charging, so I want to charge at home, and GPS Navigators without home chargers must be equipped with a current adapter.
Second, can not be indoors, search satellite GPS navigation directly accepts the US GPS navigation satellite signal operation, the need to see the sky in the outdoor to receive the satellite signal, indoors can not accept the signal!
Third, Jiangmen car navigation device battery operation time is short, general car-mounted navigation device battery is not used for a long time, because the car is a bit of smoke power, the designer thinks there is no opportunity to use the battery for a long time standby, the battery is only spare, no The plug-in power supply is generally used for 40 minutes to 1.5 hours. The models are different and the applications are different. The demand is to pay attention to the moment when the car ignition starts, the starting current is very large, and there is a risk of burning the car to charge the fuse. It is best to charge the car when it is started. Do not insert the car charger on the cigarette lighter, and then connect after the engine is started. If you are using a music DVD Navigator, you don't have to worry about these issues.
Jiangmen car navigation system
Fourth, can not search for stars or search for stars slow to meet the situation can not search for stars or search for slow status, do not worry, please change the address to try again. Do not use one or two, or one or two days to decide whether GPS is good or not, because the satellite conditions are different every day, perhaps the same local, the morning signal is full, but the signal is almost at night. What factors affect GPS receivers to receive satellite signals?
1. US Department of Defense SA satellite signal interference. (Satellite signals are controlled by the United States, and occasionally there may be abort signal service)
2. Weather elements. Such as: sunspots, bad weather (decreasing signal strength, but does not affect positioning) will affect the GPS car navigation. The GPS signal comes from the 24 satellites in the sky, so the troposphere, the ionosphere and the huge structures on the ground will affect the GPS's acceptance of the signal. If you are in a canyon or a street with two buildings, perhaps in the dense jungle, you may not be able to withstand satellite signals, and then you can't search for stars. In the same way, if you are in a building, the satellite may not be able to distinguish your current position. Therefore, the clear weather and the open space are the main factors affecting the GPS search star. Le Tour's navigator can quickly search for stars, provided that the vehicle is located at a suitable address, there is no huge building blockage around it, and it cannot be placed under the bridge. It is best not to attach a metal-containing film to other vehicles, which will weaken the signal strength and affect the operation of the GPS gps signal bearing module.
3, electrical electromagnetic interference; under the cover (buildings, valleys, canyons, tunnels) 4, car insulation film on the windshield, insulation paper, metal components cover. (decreasing signal strength, but does not affect positioning)
Fifth, the time display is not normal
The date and time on the navigator is specially used to display the satellite time. The GPS receives the satellite signal and displays it normally. If there is no signal, it is not normal. It is not a common electronic watch, so it cannot be adjusted or saved.