Satellite navigation devices detect the real-time position of a vehicle considering its speed and driving direction, and plot the best route to the destination. The devices warn about turns, roads with speed limits, many gadgets give voice prompts.

Types of GPS navigation devices

Most of these are fitted with a touchscreen. The display diagonal of navigation devices varies in the range of 3.5 to 7 inches. Usually, the wider the screen is, the more information is shown on it. On the other hand, a large display occupies a lot of space on the dashboard.

Satnav devices differ from each other by the pre-installed operating system. The most common are Windows CE and Android. Some manufacturers developed their own operating systems for the devices they make. The navigation software directly determines the technical characteristics of the device, including:

• Memory size. The larger it is, the more information you can upload to the device. Some gadgets have a slot for inserting a memory card.
• Battery life. Varies in the range of 30 minutes to several hours.
• Additional features. Some models are sold together with backup cameras, built-in dashcam or integrated 3G modem which allows getting access to the Internet using an ordinary sim-card. Besides, these devices can have a Hands Free feature, play videos and MP3 files, etc.

Sat nav devices: maintenance tips

You should install the device so as it doesn’t interfere with the view while driving. As a rule, satnav devices are supplied together with a stand or bracket. These accessories help to fix the gadget properly on the dashboard or windscreen. It is prohibited to attach the satnav devices at the places where airbags are installed. You should also note that the screen should be tilted so that it would be comfortable to observe the route.

It is possible to improve the satellite signal reception quality by using special external antennas for car GPS navigation devices. When installing, this accessory should be oriented towards the sky. In order to protect the screen of the device from scuff marks, use a special protective film. You can also purchase a special case to transport the satnav device.

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