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NS 10 Operations Manual
HOW THE NS 10 WORKS
There are two main components of the NS 10 navigational system: the receiver which mounts
outside the cabin at a high, unobstructed point on your boat, and the NS 10 control head, which
mounts on the console or at some other point convenient for use. The receiver and the NS 10
communicate by means of a coaxial cable, and are powered by your boat’s 12 volt electrical
system or battery.
The receiver, when in clear view of the sky, receives transmissions from the constellation of
GPS satellites which are continuously orbiting the earth. It selects four satellites whose position
and signal strength will provide the most accurate position “fix”, and locks onto them. From these
four satellites, the receiver is able to ascertain the time (accurate in thousanths of a second), the
position of the boat in reference to Latitude and Longitude position (accurate to +/- 15 meters
RMS with SA off), the boat’s speed and direction of travel. This information is updated once per
second and sent to the NS 10 for display. The NS 10 uses this “raw” information to provide many
options for graphic display. Your position is superimposed onto digital maps stored in the
system’s memory.
Figure 1 shows the map coverage areas. The control panel, in conjunction with the menu Select
System, allows you many options for a graphic presentation of your position, such as zooming in
and out, selecting points of interest, and providing steering indicators to guide you to your
destination. There are also advanced features for serious navigators, such as displaying your
position in TD’s, or time differentials from Loran stations, naming waypoints and routes, and
using the forward looking view to navigate a tight channel.
The liquid crystal display offers sharp viewing even in bright sunlight, and is backlit for nighttime
operation. Advanced “supertwist” technology built into the NS 10 offers a wider viewing angle and
higher contrast than ordinary LCD screens.
Though it includes sophisticated electronics, the NS 10 is tough enough to take the pounding
punishment of rough seas or a race across the lake. Completely waterproof- even salt
waterproof- your NS 10 will provide you with many years of thoroughly reliable operation.