Modern navigation systems are used in aviation, road transport, in marine technology. Without them, many do not imagine traveling. Navigators are needed for pedestrians, athletes, motorcyclists and cyclists. The most popular are devices for determining the location and paving the way that motorists use.
Choosing a navigator is quite simple, if you know in what conditions it will be operated. When looking for a device, you should turn your attention to software and cartography. Usually a set of maps is sold with the navigator. Before purchasing, you must definitely check whether all the necessary settlements are on the map. In Russian conditions, it is best to use the programs of domestic developers. The most popular are Navitel, Autosatellite, Garmin and others. Some devices are able to work simultaneously with several navigation programs, but there are models that use only their own software. When choosing a navigator, you need to consider that models without maps can only show coordinates.
Price and usability depend on screen size.
Usually it happens from 3 to 7 inches (but there are models of a larger format), it can be color or black and white. The small screen is most convenient to use with portable devices, a large diagonal is advantageous in that it allows you to view video files.
The price and choice of a navigator for a car depends on the material from which the device is made. The body of the product is usually made of aluminum or plastic. Impact resistance and water resistance are especially important for athletes and tourists.
An important parameter is also the amount of memory used. As you know, it does not happen much. With large volumes, you can view the map in more detail. Almost all modern devices except their own resources allow you to connect external cards larger than 2 GB.
The choice of a navigator is also impossible without taking into account the power of the built-in processor, on which the speed of scrolling the map and its scaling depend. Here, too, the rule "the more the better." For athletes and tourists, the dimensions and weight of the device are also important: the device should fit comfortably in your hand and be lightweight. The power of the navigator also varies. The device can take energy from the cigarette lighter of the car, from finger batteries, as well as from a conventional power supply. Most devices have mixed power.
Some navigators may be equipped with additional functions that expand the capabilities of the device. Cavers and climbers can not do without an altimeter and a barometer. Voice messages, a DVR, traffic jams - these functions, of course, can affect the choice of a car navigator. Some models have the ability to use the BlueTooth device as a speakerphone. It successfully viewed music and video files. In many cases, a modern navigator can even replace a tablet.