It’s autumn in Romania, rainy days have come. The GPS satellites are hiding behind the clouds, and because of that Sports Tracker (on Android) shows me strange routes, see next picture.
Today in Bucharest was a very cloudy day, and no chance to see any satellite . I’ve decide to enable the aGPS (assisted GPS) on my phone to see if I get better results. In less than 20 seconds it found my locations, and the differences are more than obvious , much closer to the reality. Broadband data transferred for this run (~20 minutes) was about 0.5 MB (looks like Sports Tracker is downloading also some data from google maps).
For better results you need to have Wi-Fi ON, even if you are not connected to them. aGPS is using the SSID of the routers to “guess” the best coordinates.
On 2nd picture is the route tracked with aGPS ON:
- packet data activated
- WI-FI on, even if I’m not connected to any of the WIFI routers
