topic Collector with Trimble Catalyst - Datum problem? in ArcGIS Collector Questions https://community.esri.com/t5/arcgis-collector-questions/collector-with-trimble-catalyst-datum-problem/m-p/242348#M4200 <HTML><HEAD></HEAD><BODY><P>Im hoping someone can verify if I need to modify my collector web map or if it's fine as it is.</P><P></P><P>I have a Trimble Catalyst with the following GNSS profile:</P><P><STRONG>Frame - ETRF2000(R05)&nbsp;</STRONG></P><P><STRONG>Geoid - EGM96 (Global)</STRONG></P><P></P><P>I have set up a GNSS profile in Collector as follows:</P><P><STRONG>GNSS Coordinate System - GCS ETRS 1989 (4258)</STRONG></P><P><STRONG>Map coordinate system - WGS 1984 Web Merc Aux Sphere (3857)</STRONG></P><P><STRONG>Transformation - ETRS_1989_To_WGS_1984</STRONG></P><P></P><P>My collector web map has a basemap in Web Mercator Aux Sphere, but the point file im collecting my GNSS points in is a feature service in British National Grid (OSGB) (27700). Should I have changed my feature service to a web mercator one, or will the coordinates transform correctly into BNG via the Web Maps on-the-fly transformation?</P></BODY></HTML> Thu, 01 Oct 2020 08:51:49 GMT DavidBrooks5 2020-10-01T08:51:49Z Collector with Trimble Catalyst - Datum problem? https://community.esri.com/t5/arcgis-collector-questions/collector-with-trimble-catalyst-datum-problem/m-p/242348#M4200 <HTML><HEAD></HEAD><BODY><P>Im hoping someone can verify if I need to modify my collector web map or if it's fine as it is.</P><P></P><P>I have a Trimble Catalyst with the following GNSS profile:</P><P><STRONG>Frame - ETRF2000(R05)&nbsp;</STRONG></P><P><STRONG>Geoid - EGM96 (Global)</STRONG></P><P></P><P>I have set up a GNSS profile in Collector as follows:</P><P><STRONG>GNSS Coordinate System - GCS ETRS 1989 (4258)</STRONG></P><P><STRONG>Map coordinate system - WGS 1984 Web Merc Aux Sphere (3857)</STRONG></P><P><STRONG>Transformation - ETRS_1989_To_WGS_1984</STRONG></P><P></P><P>My collector web map has a basemap in Web Mercator Aux Sphere, but the point file im collecting my GNSS points in is a feature service in British National Grid (OSGB) (27700). Should I have changed my feature service to a web mercator one, or will the coordinates transform correctly into BNG via the Web Maps on-the-fly transformation?</P></BODY></HTML> Thu, 01 Oct 2020 08:51:49 GMT https://community.esri.com/t5/arcgis-collector-questions/collector-with-trimble-catalyst-datum-problem/m-p/242348#M4200 DavidBrooks5 2020-10-01T08:51:49Z