Car or Portable Satellite Navigation – Which Is Better?

The benefits of portable GPS navigation systems (Sat Navs) are obvious. Portable systems can be easily transferred from one car to another and can be transported and used in front of the car for battery advancement. So if you have two cars or rent regular cars, the portable Sat Nav system is what you really need. Plus, most modern systems are connected directly to your home computer, usually via USB. This makes mapping and system software easier to update.

With this in mind, the car radio Sat Nav systems have little advantage over portable systems. However, for single-car car users, the car radio Sat Nav eliminates the need to connect the Sat Nav unit on all roads, as leaving a portable system in a car is a security risk.

Fixed car satellites contain larger and higher-quality displays, usually because they do not need to be attached via a suction cup. car windshields like their portable counterparts, which only last for a certain weight. Thus fewer cables and wires interfere with the dashboard. Fixed (car) systems that use a CD or DVD to transfer map data also duplicate a DVD player and some are supplied with a remote control for rear passenger passengers. The manufacturer's Sat Navs is even more integrated into the vehicle and can operate the radio and air conditioning system.

In the past, features such as bluetooth, POIs, and touchscreens can only be used with the car's Sat Navs, but are now also available in medium to high-end portable GPS systems.

The most important benefit, which is often ignored, as looking at the two systems side by side is not obvious is that fixed systems are more accurate.

Before explaining the benefit, there is little knowledge about how GPS systems know where you are. GPS systems, the use of the signals receive the three separate satellites, upwardly around the ground around. Three satellites are mathematically minimally required due to the triangulation process, which calculates its exact position as it extends from the GPS unit to the satellites.

Both fixed car and portable systems use satellite triangulation. However, car satellites, speed impulses, or Vss also collect data on vehicle electronics. The speed pulse signal is a feature of the cars dashboard for displaying the car's speed. In addition, there is a gyroscope embedded in the Sat Nav, which informs about the direction in which the vehicle turned. With this additional data, GPS knows the speed and direction you travel much more accurately than using only satellites. This is particularly useful when the satellite signal is weak or in a covered area such as a tunnel. The problem is that, with extra cabling requirements, fixed systems must be installed by experienced installers. In summary, portable Sat Nav units are more convenient and accessible, where car Sat Navs is much more accurate on larger screens, but requires more complex installation procedures.

Source by Sanjeev Massey

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