Track Line (TRK) The planned line of travel between two waypoints, and it represents the most efficient path between the two points because it is a s traight line. The TRK is measured in degrees (i.e. 321°, where 000° is No rth, 090° East, 180° is South, 270° is West). See Cross Track Error and Course Over Ground.
Trackplotter A navigation device that shows Present Position, along with Track,Waypoint, and Routes, but NO MAP in the background. See Chartplotter.
Trolling Grid A Humminbird® feature that displays a pr ecise reference grid around a waypoint. This grid is used as aguide pattern for trolling around a specific area to assure a more efficient and complete coverage of that area.
UTC (Universal Time Constant) UTC is the “standard time” used in navigation and is the local time in Greenwich England. (UTC is equivalent toGreenwich Mean Time (GMT)).
WAAS (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 automaticallyreceived 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 The saved location (latitude, longitude) of a point of interest that is storedin 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.
Waypoint Target A Humminbird® feature that displays a precise “bull’s eye” around a selected waypoint. This bull’s eye is use d to easily monito r bo at position relative to a waypoint, and is useful for fishing over submerged structure. With Waypoint Targets,a quick look at the screen lets you know how far off the waypoint the boat has drifted.
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