Last 2 days in some my trainings I’ve found strange issue:
In the same training location with DOP about 3.5 the speed and GPS positions are not measured properly.
(http://www.gps-sport.net/trainings/running_296170 - speed was 0 km/h)
(http://www.gps-sport.net/trainings/running_296170 - speed was 6 km/h)
It should be about 9 – 10 km/h. Also GPS track in the beginning is not a straight line.
My question is:
Does any parameter in the system can be tuned up correctly to fix the issue?