Not all missions will require georeferenced navigation. If the mission does not require georeferenced navigation, you may still want to set the compass declination in step 3 below, but can skip steps 1, 2 and 4.

If the operation requires georeferenced navigation, the navigation system should be initialized.

1. Verify geolocation data from either the ROV GPS or Topside GPS.
2. Geolocate the vehicle using one of the following methods.
• Click the Reset to GPS button.
• Key-in coordinates or use the Get Topside button and then click the Update Vehicle Position button.
• Rick click on the location of the ROV on the map and select Set Position from the map right-click pop up menu.
• Use the sonar image as a reference and select Set Position from the map right-click pop up menu until an object in the sonar image, such as the shoreline or pilings lines up with the map.
3. Once you have established the location, set the Declination.
   • You can use the Auto Declinate button,
   • or Key-in the declination and click on the Update Vehicle button.
4. Verify USBL operation, if installed

Make sure all of the items in this step are completed successfully or addressed and remedied before moving on to the next step.