GPS Accuracy Explained – VDOP TDOP GDOP HDOP PDOP

How accurate is your GPS? I went for a run last night and, at times, the track I looked at later was over 20m off. When I drive in London the car Satnav often has no idea where I am. If you have experienced the same as me then you might be surprised to know … Continue reading GPS Accuracy Explained – VDOP TDOP GDOP HDOP PDOP