Changing GPS speed averaging value

SECTION FOUR - Service/Maintenance

Figure 30: Receiver information screen

NOTE:

If you’re viewing and editing information on the RECEIVER INFORMATION screen, and you press one of the five func- tion keys to view other data, the 961 immediately cancels your edit-in-progress so that you can view the data requested by your function keypress. To resume editing at the RECEIVER INFORMATION screen, you must return to that screen and re-enter the data you lost when you pressed the function key. To purposely cancel an edit-in-progress, however, you’d nor- mally press the CANCEL key.

When you aren’t using DGPS or you’re out of range, you may notice that the SOG readings obtained from the GPS satellite system are slightly erratic, varying by up to several knots. The 961’s GPS SPEED AV function often can improve the steadiness of these readings, although you’ll see a slightly longer display-reaction time when the speed changes.

With GPS speed averaging, you can select the time over which the 961 averages your speed, with available values between one and ten seconds. A longer averaging time is useful at lower speeds when you require the highest accuracy. With this high degree of accuracy, you’ll see a steady display of your speed that’s slow to change. A shorter averaging time, however, provides less accuracy and a quicker-changing display of your speed.

You also can turn off speed averaging completely for the quickest possi- ble display-reaction time.

961 INSTALLATION MANUAL Revision A

Page 59

961X, 961XD specifications

NorthStar Navigation has long been a leader in marine navigation systems, and the NorthStar 961XD and 961X are no exceptions. These cutting-edge devices bring advanced navigation capabilities to both recreational boaters and professional mariners, ensuring precise positioning and enhanced safety on the water.

The NorthStar 961XD is equipped with a powerful GPS receiver that delivers exceptional accuracy, even in challenging environments. This is achieved through a combination of differential GPS (DGPS) technology and support for WAAS (Wide Area Augmentation System). These features enable users to achieve positioning accuracy within a few meters, which is crucial for safe navigation in crowded or complex marine environments.

One of the standout features of the NorthStar 961XD and 961X is their intuitive user interface. The devices boast a large, high-resolution color display that provides clear visibility in various lighting conditions, including bright sunlight. The menu-driven system allows users to quickly access essential functions, making it easy to plot courses, set waypoints, and track routes on the go.

Both models support advanced charting capabilities, including the ability to display vector and raster charts. The chart database can be easily updated via USB, ensuring that users have access to the latest navigational information. This is particularly important for long-distance cruisers navigating through unfamiliar waters.

Another significant feature of the NorthStar 961XD and 961X is their integrated fishfinder capabilities. With sonar technology, users can locate fish, understand the underwater topography, and enhance their fishing experience. This dual functionality makes the devices versatile companions for both navigation and hunting for the next big catch.

Connectivity is another important aspect of the NorthStar systems. Both models feature multiple connectivity options, including NMEA 0183, allowing seamless integration with other onboard electronics such as autopilots, radars, and AIS systems. This enhances the overall situational awareness and safety of the vessel.

Finally, the rugged design of the NorthStar 961XD and 961X ensures they can withstand the harshest marine environments. With water-resistant housing and durable construction, these devices are built to last, providing reliable performance year after year.

In summary, the NorthStar 961XD and 961X deliver a winning combination of advanced navigation technologies, user-friendly interfaces, integrated fishfinding capabilities, and robust construction. These features make them indispensable tools for anyone serious about safe and efficient navigation on the water.