Incorrect position from Traccar Client for Android hidden version
Traccar Client uses what Android system provides, which can be either GPS or network-based location. Network location is calculated from cell towers and wifi points and can be very inaccurate.
I'm in a place where I do not have a cell phone signal, so I use an external antenna and I connect to the router with a chip from the telephone company that distributes it to me indoors through WIFI.