Hi Andrew<br><br>It should be set to WGS84.<br><br>Thanks!<br>Ray<br><br><div><span class="gmail_quote">On 1/15/07, <b class="gmail_sendername">Andrew Rowbottom</b> <<a href="mailto:andrew.rowbottom@gmail.com">andrew.rowbottom@gmail.com
</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Can anyone tell me what Datum I should be using on my GPS? I can't
<br>seem to find anything on this in the Wiki.<br>I'm assuming I should be using WGS84 since that's reasonable for the<br>whole world, but obviously in the UK (where I am) my datum would<br>normally be OSGB(36?). The difference is between 70 and 100 meters
<br>which is significant compared to current GPS accuracy.<br><br>see <a href="http://en.wikipedia.org/wiki/British_national_grid_reference_system#Datum_shift_between_OSGB_36_and_WGS_84">http://en.wikipedia.org/wiki/British_national_grid_reference_system#Datum_shift_between_OSGB_36_and_WGS_84
</a><br><br>Andrew Rowbottom<br><br>_______________________________________________<br>talk mailing list<br><a href="mailto:talk@openstreetmap.org">talk@openstreetmap.org</a><br><a href="http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk">
http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk</a><br></blockquote></div><br><br clear="all"><br>-- <br>Ray Booysen<br><a href="mailto:raybooysen@rjb.za.net">raybooysen@rjb.za.net</a>