WWLL Network Global Lightning Locations. Setting an Etrex for NZTM2000 | Articles | New Zealand Tramper: hiking and walking community information. The older models of etex GPS do not have the new NZTM map grid in them. This is the steps to set it up as a User Grid. These steps are not necessary if the model of GPS you use already has "New Zealand TM" in the menu under position format. Your GPS unit can be re-programmed at any time so it is compatible with NZTM2000. The new Topo50 maps and coordinates come into effect from the end of September 2009. Follow these steps to re-programme your GPS: Turn the GPS on.
The GPS unit will now collect positions of Easting and Northings in NZTM/Datum2000. To go back to the old NZMG/GeoDatum49, change “Position Format” to “New Zealand”. To reselect the new NZTM/Datum2000 Change “Position Format” to “User Grid” and “WGS84”and you will be good to go. Port Chalmers Tide Times and Tide Charts from MetService. POES Auroral Activity. New Zealand Weather - satellite data.