User manual

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3.4. GNSS Antenna Offsets
3.4.1. NGS Calibration
Figure 8: Phase Center Location
Phase Center Location
NGS Vertical Offsets
Absolute
Relative
L1 Offset (mm)
94.7
113.5
L2 Offset (mm)
86.2
94.1
Absolute - http://www.ngs.noaa.gov/ANTCAL/images/ant_info.abs
APS_APS-3 NONE ALTUS GNSS RCVR/ANT, P/N:10015, PNL TO N NGS ( 3)
1.3 -0.6 94.7
0.0 1.1 1.8 2.0 1.9 1.5 1.1 0.5 0.1 -0.2
-0.3 -0.5 -0.5 -0.5 -0.3 -0.1 0.4 0.0 0.0
-1.0 3.2 86.2
0.0 -1.0 -1.4 -1.3 -1.0 -0.6 -0.3 -0.3 -0.5 -0.9
-1.4 -1.9 -2.5 -2.9 -3.1 -3.1 -2.5 0.0 0.0
Relative - http://www.ngs.noaa.gov/cgi-bin/showdoc.prl?Data=GPS/ant_info.003
APS_APS-3 NONE ALTUS GNSS RCVR/ANT, P/N:10015, PNL TO N NGS ( 3)
0.7 -0.1 113.5
0.0 1.3 2.7 4.0 5.2 6.2 7.1 7.7 8.1 8.1
7.8 7.0 5.8 4.1 1.9 -0.9 -4.4 0.0 0.0
-0.9 3.8 94.1
0.0 -0.9 -0.9 -0.2 0.8 2.0 3.1 3.9 4.3 4.3
3.8 2.9 1.5 -0.1 -1.9 -3.7 -5.3 0.0 0.0