From which aspects can we judge the advantages and disadvantages of automobile navigator
1. Chip of satellite signal receiving module.
This is an important component to determine the accuracy and speed of GPS. Selecting backward chips means that when your car reaches the intersection, you need to wait for GPS to tell you how to go before you can drive. If you walk at the normal speed, you will have to return to the original line from time to time and correct the mistakes. At present, the first to third generation chips are used in the market. Most dealers will not tell you the chip functions of their products when selling GPS. This is just like when you buy a mobile phone, people won't tell you how much the CPU of your mobile phone is, because once you are told that the CPU version of your mobile phone is very low, which will affect the application speed of your mobile phone, will you still buy this mobile phone?
2. Speed of map update.
Now the construction and development speed in various places is very fast. If the manufacturer does not provide map update services in time, your GPS will not be of great use. Of course, the GPS salesperson will not automatically tell you this. The salesperson will tell you how many places and towns the map installed in its GPS can cover. But if you think about it, if the map is not updated, it won't be long before your GPS map will be far from practice.
3. Provide free update time.
Generally, GPS produced by informal enterprises uses cracked maps and will not provide update services. Some enterprises use genuine maps, but do not provide update services. Some enterprises also use genuine maps, but they charge other fees when updating the maps. There are also some enterprises that provide you with free map updates for a long time. We should know that the price ratio between the hardware of GPS navigator and the price of genuine map software is about 1:3 or 1:6, that is, the hardware is cheaper than the software. Therefore, when choosing a GPS navigator, you should look at both hardware and software. Otherwise, the GPS you buy is a waste of little use.
Article source: Jiangmen vehicle navigator http://m.shlinglang.com
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