ALTUS APS-3 - GNSS Antenna Offsets; NGS Calibration

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3.4. GNSS Antenna Offsets
3.4.1. NGS Calibration
The APC-ARP value is an offset as described in the NGS calibration data:
absolute :http://www.ngs.noaa.gov/ANTCAL/Antennas.jsp?manu=ALTUS
relative: - http://www.ngs.noaa.gov/ANTCAL/LoadFile?file=ant_info.003
Figure 8: Phase Center Location
Altus Product
Antenna name
Absolute
APC-ARP
Relative
offset
APS-3
APSAPS-3
0.0906m
0.1135m
APS-3G/L
APS-T
APSAPS-3L
0.0936m
0,1117m