Gps speed limiter.Key data of GPS module - speed accuracy

　　Positioning accuracy, as we all know, directly represents the positioning accuracy of the GPS module. Generally speaking, the positioning accuracy of the GPS module is between 5 and 10 meters, and the given data is between 3.5 and 5 meters. The positioning accuracy of this data is very high. It is worth mentioning that in terms of high precision, UBlox is the highest and better than MTK.

　　Baud rate, many customers who purchase GPS module products know it. Generally speaking, the default baud rate for GPS modules is 9600. However, some customers use a baud rate of 4800, so some companies will say that I will send our engineers to burn the program. What is this idea? He provided the customer with a Flash (storage memory crystal) version of the GPS module, which can change the internal baud rate of the system to read the new baud rate and facilitate communication.

　　The optional refresh rate varies depending on the usage scenario of the GPS module. Customers can set it according to their own product characteristics or usage situations, or we can set it according to different customer situations.

　　Built in high gain LNA, LNA first level low noise amplifier chip (also known as Shuo), can add 18 dB of gain to the GPS module, but it is not enough to add it. It depends on the customer's board. If the customer adds LNA to their board, we may not need to add LNA to the customer's GPS module because they already have LNA, and if we add it, it may cause conflicts with the customer's board.

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