Systematic differences in GPS antennas
I am testing elevation results on 2 different GPS antennas one being a Topcon PGA and the other a Topcon Hiper. There seems to be a consistent difference of 15mm between the 2 antennas on the same points. This is is with days of static data on each, different locations, correct antenna models in Magnet tools, correct height measurements etc.
Is it normal for there to be a systematic difference in antennas like this? The PGA is meant to be better for static so I will probably rely on that more.
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