Thread: About 37xx converted to 34xx satellites reception accuracy

Originally Posted by catymag

Had both Nuvis the same position in your car? Nuvi position is important too, wrong position can lead to bad tracks.

In the previous post I used only a GPS, the 3490 real. His position was improper, that is, at the bottom of the dashboard, just below the windshield, near at the gear shift. Throughout the test I left the gps in satellite page screen and apparent precision was 3 meters, always. Best of all is that the result of the off-road tracklog was great. Maybe if the gps was on the windshield, as it should be, the result was even better. So, I can deduce that small variations in position of my GPS in my car, does not matter.

In relation to the test of the post #368 at that I have used 2 gps, both side by side on the panel and in horizontal position, still produced tracklogs off-road very similar between themselves and appropriate to the external environment (unfavorable for satellite acquisition, buildings, trees..). As in other measurements I've done, but not published, the small variation of the position of these devices not imply bad tune.

As a result overall I am quite sure of my conclusions and anyone who wants to challenge or confirm, feel free, but make up from of concrete and well collected data or showing some logical inconsistency in my analysis of data. Without reliable data on which to base our affirmations are mere opinions or matter of faith..