In an unknown area, you can easily get lost without a GPS navigator. Thanks to him, it becomes possible to navigate the terrain, getting from point A to point B along the most convenient route. The main thing is to choose the right device. We will tell about this.
Navigator operation scheme
Just before buying a navigator, it is desirable to understand in general terms the principle of its operation. To determine the location, this device uses the Global Positioning System (groups of satellites from which the navigator picks up certain signals). Satellites must be in the field of view of the apparatus and there must be several of them.
In view of this, the accuracy of determining the coordinates also depends on the nature of the terrain. For example, on basement floors or a narrow street with skyscrapers, the signal may simply not reach the device. The weather also has an effect – cloudiness and rain interfere with the accuracy of the determination.
Car GPS navigators
Such devices are generally always equipped with large displays that are needed for comfortable navigation while the car is moving. The dimensions of the navigator do not interfere with the convenience of its use.
These automotive devices can be divided into removable and installed:
- The first are classic tablets that can be easily removed and taken home. The navigator is mounted in the cabin thanks to a special stand, which is attached to the “torpedo” or windshield with a suction cup. Power comes from the cigarette lighter, but the device can work for some time from the built-in battery.
- The second type of navigators is installable. They are created in the form of standard radio tape recorders that have a GPS function. They are mounted in a regular slot, which is located on the center console. Power comes from the mains. In terms of additional functionality, the choice of car navigators is wide, but devices of the installed type are most often more modified.
What to consider when buying a navigator
The above device has an extensive list of features and specifications. There are two main points that you should rely on when choosing a GPS navigator:
- display dimensions – the overall usability depends on this criterion. On a large screen (5 inches or more), all the details of the interface are clearly visible, which are more convenient to poke with your fingers. The map itself is also better visible;
- User-friendliness of the interface — ease of use, convenient modes of auto-rotation of the map at the time of driving and scaling. With a good device, the process of creating a route is intuitive. In addition, the navigator includes several modes – optimal, shortest, taking into account traffic jams, and so on.
All navigators are sold already in a set with maps – without them, the device simply will not be able to work. Before purchasing the device, it is recommended to carefully study the characteristics and set of maps, and also make sure that they contain the necessary regions and cities.