Quote Originally Posted by palmtree8 View Post
Ok what's the benchmark value then? To those of you who own a REAL 3490, what is the best accuracy you've ever got? I just tested both units again a few minutes ago. My 3490 didn't go any lower than 10 metres, whereas my 1490 had an amazing 3 metres of accuracy.
The best reference value in ideal conditions is 3 meters, as shown on your 1490. Remember that these are not absolute values​​, but a order of magnitude. Either way, your 3490 has problems, most likely hardware, as I said. If you want to go deep do tests with tracklogs as I proposed in the topic of precision of converted 3790, but I would send for assistance or trade it for another, if possible.