Filter
Top Products
108
Time To Go (TTG): Time To Go is the estimated time required to reach the destination waypoint.
TTG is calculated using the SOG and DTG. See SOG and DTG.
Track: A Track is a series of saved points that define the past path of the boat. These Track Points
are saved at regular time intervals. Tracks are a useful and quick method to see where you’ve
been, and an easy guide to follow to get you back to the starting point. Generally, all GPS units
have a limited number of Track Points that can be saved before the unit runs out of memory and
begins erasing the first track points saved. Because of this, the user can adjust the Track Point
Interval menu to increase the amount of time between when points are saved, and thus extend
the distance covered by a track. Tracks can also be permanently saved to memory, and re-
displayed at the user’s option.
Track Line (TRK): The Track Line is the desired line of travel between two waypoints, and
represents the most efficient path between the two points because it is a straight line. The TRK is
measured in degrees (i.e. 321°, where 000° is North, 090° East, 180° is South, 270° is West). See
Cross Track Error, Course Over Ground.
Trackplotter: Trackplotter describes a navigation device that shows Present Position, along with
Track, Waypoint, and Routes, but NO MAP in the background. See Chartplotter.
Trolling Grid: Trolling Grid is a Humminbird® feature that displays a precise reference grid around
a waypoint. This grid is used as a guide pattern for trolling around a specific area to assure a more
efficient and complete coverage of that area. Trolling Grid resolution be changed by zooming in
or out on the chart. The Trolling Grid can also be rotated on the display to orient it for optimal boat
course for wave and wind conditions.
UTC: UTC is an acronym for Universal Time Constant. UTC is the “standard time” used in
navigation, and is the local time in Greenwich England. (UTC is equivalent to Greenwich Mean
Time (GMT)). To display the correct Local Time in a Humminbird® GPS unit, the user must use the
Local Time Zone menu and select the time zone (i.e. EST, CST).
WAAS: WAAS is an acronym for Wide Area Augmentation System. WAAS is complementary
technology to GPS that provides enhanced accuracy through correction signals broadcast from
Federal Aviation Administration WAAS satellites stationed over the USA. These secondary signals
are automatically received by the standard Humminbird® GPS Receiver. With WAAS signal, GPS
accuracy is improved to within 3 meters 95% of the time. Outside the United States, regional
governmental coalitions have created similar systems such as EGNOS (Europe) and MSAS (Japan).
Waypoint: A Waypoint is the saved location (latitude, longitude) of a point of interest that is
stored in a GPS receiver’s memory. This can include a marker buoy, dock, fishing hole or anywhere
else the user may want to return to. Humminbird® products offer the ability to name and assign
a symbol to the saved location. Depth, Date and Time of Day when the waypoint was created is
also saved.