Users only need to have a general understanding of the specific technical specifications of the third generation chips, and mainly compare and observe whether they have the following characteristics.

　　(1) Fast positioning time: Regardless of cold start, warm start, or hot start, the recapture time is 5-30 seconds faster (compared to the second generation), and in fact, most users are no less than these ten seconds.

　　(2) High sensitivity: It means that more than 4 satellites can be quickly located and collected in high-rise buildings, under trees, bridges, shelters, tunnels, windows, inside the car, and even under the chassis of the car. It is often said that if there is a bit of sky, one can locate (single star positioning), that is, "Give some sunshine and it will be brilliant".

　　(3) Anti interference performance: High voltage lines, electric fields, magnetic fields, high-speed dynamics, microwaves, mobile phones, can still work normally in the same frequency interference environment.

　　(4) Low power consumption and power saving: Reducing power consumption and even sleeping (static non working) can save power and improve product standby time.

　　(5) Small size and good cost-effectiveness: small size and light weight, which is a trend of social demand and development, can expand more application ranges and fields.

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