Some basic knowledge of GPS


1.GPS can't be 100% positioned, let alone believe in indoor positioning; GPS is not like mobile radio, you can receive signals anywhere, many things will affect gps search stars, including sky star distribution status, buildings, viaducts, radio waves, leaves , Ge hot paper, etc., will affect too many things, in general, from the gps position up, you can see the area of the sky, is the area where gps can receive the signal.

2. Do not use it once or twice, or a day or two, to determine the quality of the GPS; because the sky satellite status is different every day, maybe the same place, the morning reception is full, but the night can not be located, it is possible, it is possible The positioning situation is not good for several days.

3. Comparing the quality of gps, it must be compared at the same time; many people buy gps, they will say that the one I used before is better, but this is not true, because the time and place are different, finally The result is much worse. It must be used for a long time, or at the same time, to feel the difference between the two types of GPS.

4. GPS receiving strength table, is not enough as a GPS purchase reference; everyone buy gps, only look at the electronic map in the receiving form, may have been quite accurate in the past, but now gps, in order to let the receiving table It looks good, so there are fake signals, or simulated signals, etc. The receiving form is really beautiful, but it may not be positioned correctly or even displayed correctly.

5. There is no so-called indoor positioning gps; basically there is no signal in the room, there is no signal, the real indoor positioning, it is indoors from the cold start, but the same positioning, it is the real indoor positioning, but basically the indoor positioning is also meaningful. No, because I won't navigate at home.

To learn more about various types of vehicle gps tracker, click here：
www.gpstracker-factory.com
Email:joe@great-will.com.cn
Tel: +86-13516682778

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