Nmea Interface Output, Plotter History, Position

NAUTICAL MILE: Unit of distance with 1 nautical mile equating 1 minute of latitude or about 6000 feet.

NMEA INTERFACE (OUTPUT)

Default setting: off

Connector #6 on the rear of the NS 10 is used to communicate with autopilots, plotters, radar etc. The National Marine Electronics Association has developed a standard for communication between electronic navigation instruments. Refer to section IX. Interface Options for more detail.

ORIGIN: This is the starting point of travel.

OFFSET: The numerical adjustments that are made to time, distance or direction to accommodate a specific region.

PICK: Displays all information about any waypoint visible on the screen. Also represents the number 9 when the numeric keypad symbol is displayed.

PLOTTER HISTORY

Default setting: 5 minutes

A course history line is shown in the graphics area, attached to the present position indicator. This shows the history for your course, or where you have been. It is helpful in visualizing the progress, or retracing your course to return to the starting point. A position point is displayed every 30 seconds, but, you have the option to determine how much course history to display. This represents minutes of course history and the options are: 5 minutes, 15 minutes, or 60 minutes, all course history since you turned the NS 10 on, or no course history, which is the best selection if you are stationary. Experimentation with these settings is the best way to find the option that suits you.

The NS 10 allots sufficient memory to store 240 position points, so when selecting ALL, be aware that after recording two hours, the most distant points will begin to be replaced. The course history line is not displayed when the PICK, CURSOR, ROUTE, or DIST (distance) mode is turned on, but it is being recorded and will be displayed when the mode is turned off.

POSITION

Default setting: Lat/Lon

There are two options available for the display of your position: LAT LON is the default setting, and provides your position with reference to the standard coordinate positioning of latitude and longitude. The other option is unique to the NS 10. It allows position read-outs in reference to Loran stations, the same way that Loran receivers work. The from of the readout is

in "time differentials" or simply "TD's". This feature is designed to appeal to long time loran users who have stored points of interest by reference to TD's. While the NS 10 can be configured to read-out in TD's, be aware that doing so requires a complete understanding of the loran system, and the accuracy of position readouts is limited to the accuracy of both the loran system, and the receiver used to store the points.

If you choose to display the position readout in TD's, the NS 10 will require much additional information. If Loran TD's" is selected, the next several menus will ask you for the information necessary to convert to TD's.

Select GRI; For TD readout only, the NS 10 must know the group repetition interval you wish to use.