Magnetic variation offset

The location of the magnetic north pole is dif- ferent from the geographical north pole. This causes a difference between the true and mag- netic north direction. This difference is called magnetic variation, and varies with respect to the observation point on the earth. This varia- tion may be entered automatically or manu- ally.

Navigation calculation

The GPS receiver calculates the range, bear- ing and cross- track error to next waypoint when you select a destination. The calcula- tion of that data is called navigation calcula- tion.

NMEA 0183

The National Marine Electronics Association's signal format which enables connection of electronic equipment of different marine elec- tronics manufacturers.

Plotting interval

The plotting interval determines both how the track will be reconstructed on the display and track storage time. The shorter the interval the more accurate the reconstruction of track line, however total storage time is reduced. The plotting interval can be selected to time or distance. Plotting by distance offers the ad- vantage that the track is not stored when the vessel is anchored.

S/A

GPS was developed by the US Department of Defense mainly for use by its marine ves- sels and aircraft. For civil users the accuracy of the system is purposely downgraded for national security reasons. This intentional ac- curacy reduction is called S/A. Because GPS position error may be greater than 100 meters any GPS position should be double checked against other sources to confirm position.

Time-to-go (TTG)

The amount of time necessary to get to a des- tination, maintaining current speed and course.

Time differences

Time differences (or TDs) are the position information generated by the Loran C and Decca position-fixing systems. TDs are the time in microseconds between the transmis- sion of pulsed signals in the Loran C and Decca systems.

Total distance

This is the number of miles from starting point to end point in a route.

Trip distance

The distance run from a position.

Trip elapsed time

The amount of time passed since departing a starting point.

True bearing

Bearing relative to North; compass bearing corrected for magnetic deviation. The GPS receiver can display true or magnetic bearing.

Velocity to destination

The amount of speed in the direction (course) of the desired destination.

Waypoint

A waypoint is a particular location on a voy- age whether it be a starting, intermediate or destination waypoint.

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Furuno GP-1610CF Magnetic variation offset, Navigation calculation, Nmea, Plotting interval, Time-to-go TTG, Trip distance
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GP-1610CF specifications

The Furuno GP-1610CF is a sophisticated marine navigation system designed for enthusiasts who demand accuracy and reliability on the water. Featuring a 10.4-inch color LCD display with a resolution of 640 x 480 pixels, this unit provides crystal-clear images of charts and navigation information, even under direct sunlight. Its user-friendly interface allows for intuitive management of various functions, making it accessible for both novice and experienced mariners.

One of the standout features of the GP-1610CF is its integrated GPS receiver, which boasts a high sensitivity that ensures rapid acquisition of satellite signals and precise positioning. The unit supports a range of positioning formats, including WAAS (Wide Area Augmentation System), allowing for enhanced accuracy within the coastal dimensions. Additionally, the GP-1610CF is compatible with DGPS (Differential GPS) systems, further refining positional accuracy and providing a reliable navigation experience.

The GP-1610CF also supports C-MAP NT+ charting, offering an extensive variety of cartographic data covering numerous regions. This enables users to visualize marine environments with detailed bathymetric information, harbor layouts, and navigational aids. The system's customizable waypoints and route planner facilitate efficient marine navigation, allowing users to create multiple routes and track them in real time.

In terms of connectivity, the GP-1610CF offers NMEA 0183 output, which allows it to interface seamlessly with other marine electronics such as autopilots, radar systems, and depth sounders. This enabling communication between devices enhances overall situational awareness and improves navigation assistance.

The unit is built to withstand the harsh marine environment, featuring a robust housing that is resistant to saltwater, humidity, and temperature variations. Additionally, the GP-1610CF can function in challenging lighting conditions thanks to its adjustable contrast and brightness settings, which help maintain visibility during nighttime operation.

Overall, the Furuno GP-1610CF stands as a reliable choice for sailors seeking a high-performance navigation solution. With its combination of advanced GPS technology, high-resolution display, extensive chart compatibility, and robust design, this device continues to be a trusted companion for marine adventures around the globe. Whether cruising, fishing, or engaging in professional navigation, the GP-1610CF delivers essential features that empower users to navigate with confidence and accuracy.
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