Next test results with just 3 files in GPS dir:
City driving - average 15-20 m. accuracy. GPS connected to 11 of 12 visible satellites, not full signal strength /avrg. 40%/. Lowest accuracy 27 m. and highest - 10m.
Strange, but no problem with navigation process, even there I have had 27 m. accuracy. The car icon was always on the right road. All the time full signal strength green bars /not blue one/.
Out of town – avrg. accuracy 13-16 m. Worst – 22m., best 10m.
Time to sat fix – immediately after main screen appearance.
Outside the car to open space with clear view, standing in one place – believe me, I have never seen such a thing – 3 m. accuracy, almost all blue bars on 100%. Beauty!
Conclusions: much better as navigation behavior, but still it is not 3490 or 2595 accuracy and sensitivity. I even start to think that may be my receiver’s antenna was broken and because of that the unit is so case sensitive. I have dropped down unit several times and remembering how fragile were old Nokia phone antennas ….. Unfortunately cannot check, as I am not so good in dismantling.