AccuTracking

His question was about negative ALTITUDE - unless your under water - that is most likely caused by multi-path - or a reflected/obstructed signal.

Sometimes you see this if its mounted under a car - where your bouncing the GPS signal off the ground - or if its next to a building where its getting a reflected signal.

To see -5000 is rare though - but anything is possible. I guess it depends on how far the error is - and what your "normal" elevation is.

Eric

I'm not sure why the altitude is 5000 negative, but a negative longitude is perfectly normal, anyone west of GMT will have a negative longitude.

Are you seeing your current location on the map ok?

I am not getting any alerts when the phone crosses into or out of a set fence. I also notice that on the tracking map I am showing a negative 5000 ft for altitude and a negative longitude also.

Also when I set a fence and enter the lat and lon numbers manualy and hit save it loses the numbers after the decimal point, any ideas?