On-going survey of GPS systems
We see them everywhere, on dashboards, lighting up car interiors, the GPS is definitely here to stay. For 2007, we offer an updated survey with some current models that are references in this area and those most recently tested. New arrival will be added to this article throughout the year.
GPSs are evolving and 2006 saw the widespread integration of Sirf III chips in all products. We were thus assured good reception on the road, whatever the vehicle-a nice improvement. However, in the meantime our criteria has also become more stringent and some functions are now indispensable. For this reason, this new survey puts more importance on certain points that now seem absolutely necessary to us.
Interface quality and traffic info: two key elements
We start with ease of use, something very important when driving. The interface with the Tom Toms is attractive, because it’s simple and intuitive, and we expect the same or better from other manufacturers. The reactivity of the PND, their ability to calculate and recalculate itineraries, zooming in and out on maps, this is what interested us here. A function like traffic info is also a must for some users and is increasingly popular. We didn’t make this an absolute criterion for obtaining 5 stars, but it is a significant plus, especially in its Premium version. This can be included to a GPS, which is reflected in the product’s price, or is optional subscription service.
Save your driver’s licence: the localization of radars is indispensable
Another appreciable point is the localization of automatic speed radars on roads. If the system offers to display points of interest, they might as well include this information. All of this can add up to relaxed and easy driving, especially if the GPS includes proper management of speed limits. We also placed importance on the time to connect to satellites when turning the system on and antenna sensitivity. We’ve encountered large differences between different PNDs, and this information should be shared. In this article you will find a table summarizing performances of calculation times for different itineraries for GPSs that we will test throughout the year.
Case by case practical information
Finally, we tried to test the maximum capabilities of each GPS. However, nothing is like real use of the system to actually see a PND’s strong points and weaknesses. On the bottom of each product evaluation, we’ve added practical info on the weak points of each GPS. This isn’t general information for comparison, because not all itineraries were the always the same, however, it does show the potential problems that can be encountered in real use.
