Humminbird NS 10 Operation Manual page 34

Use the up/down arrows to choose NORTH or SOUTH.
Note: If you do not want to change a setting simply press ENTER and the next menu will be
displayed.
Press ENTER when the setting is correct. The CHANGE LATITUDE screen will be displayed
requesting the new latitude coordinate.
Use the keypad to enter the new numerical waypoint latitude coordinate, if desired.
Note: If you enter an incorrect digit, enter remaining digits, then re-enter digits until the entire
number is correct. Then press ENTER.
Press ENTER when the setting is correct. The CHANGE LONGITUDE screen will be displayed.
Use the up/down arrows to highlight EAST or WEST.
Press ENTER when the setting is correct. The CHANGE LONGITUDE screen will be displayed
requesting the new numerical longitude coordinate.