lundi 25 septembre 2017

GPS Measurement Co-ordinates

I am using my Motorola Moto G 4G LTE to determine locations of various objects of interest for Family history purposes.

1 st Question: Is the GPS Status App (free version) appropriate for this? I have also tried the Maps Coordinates App, but I believe it gives less accurate results (I have taken observations of known survey marks with both Apps)



2nd Q: If it is an appropriate App, I am getting a GPS unavailable message during some of my measurement sessions. I usually have background data restricted on my phone, but switching that on does not seem to remove that message.

Is there a limit to how many observations you can take in a session with the free version, or is this message due to some other cause?

At the same time as I see this message, it seems to experience problems getting reasonable fixes, ie instead of quickly reaching a 3 metre error fix, maybe using 14 of 22 visible satellites, it suddenly can't do better than 9 m error.


Any suggestions welcomed


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