Humminbird 955C manual Selectable Data Windows

531569-1_B - 955c ManE.qxp 3/4/2007 5:04 PM Page 54

	5 Selectable Data Windows
	Used by Standard Chart Views
	Navigation Mode
Bearing	Bearing is the direction to a destination waypoint measured in degrees from North (i.e.
	321°, where 000° is North, 090° East, 180° is South, 270° is West).
CMG/SMG	Course Made Good/Speed Made Good. Course Made Good is the angle between the
	starting point on a route and the current position of the boat. The goal is to have CMG and
	Track equal to the same number. See the Course Made Good illustration. Speed Made Good
	is the distance from the starting waypoint on the route divided by the time elapsed since
	starting navigation on the route.
COG	Course Over Ground. Course Over Ground is the current direction the boat is traveling
	measured in degrees from North (i.e. 321°, where 000° is North, 090° East, 180° is
	South, 270° is West). When the Course Over Ground is equal to Bearing, the boat is said
	to be “On Course” and will arrive at the destination in the most efficient manner. See the
	Glossary for more information.
Off	Suppresses the readout so that no data shows in that position.
Position	Position is the current location (latitude, longitude) determined by GPS.
SOG	Speed Over Ground. Speed Over Ground is the measurement of the boat’s progress across
	a given distance, and is the speed measurement provided by GPS; accurate destination
	times can be derived from this measurement. See the Glossary for more information.
TRK/CMG	Track/Course Made Good. 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. See above for an explanation of Course Made Good.
TTG	Time To Go. Time To Go is the estimated time required to reach the destination waypoint.
	TTG is calculated using the SOG and DTG.
Temp	The current detected water temperature.
Aux. Temp	The current detected water temperature from an optional-purchase Temperature Probe or
	Temp/Speed accessory.

	5 Selectable Data Windows
	Used by Standard Chart Views
	Navigation Mode (cont.)
Time	The current time.
Time + Date	The current time and date.
Triplog	Displays the triplog, which measures the elapsed time since last reset, the distance
	traveled since last reset, and average speed during timed interval.
VMG	Velocity Made Good. Velocity Made Good is the speed of travel relative to the next
	waypoint on the route. The goal is for VMG to equal Speed.
Voltage	Power supplied to the control head.

WPTend/ETA/DTG Waypoint End/Estimated Time of Arrival/Distance to Go. Waypoint End is the last waypoint on the route. Estimated Time of Arrival is the estimated time of arrival to the last waypoint on the route. Distance To Go is the distance between the current position of the boat and the last waypoint on the route.

WPTend/TTG/DTG Waypoint End/Time To Go/Distance to Go. Waypoint End is the last waypoint on the route. Time To Go is the estimated time required to reach the last waypoint on the route. TTG is calculated using the SOG and DTG. Distance To Go is the distance between the current position of the boat and the last waypoint on the route.

Water Speed The current speed of the water as it flows past the boat.

WPTnext/ETA/DTG Waypoint Next/Estimated Time of Arrival/Distance to Go. Waypoint Next is the next waypoint on the route. Estimated Time of Arrival is the estimated time of arrival to the next waypoint on the route. Distance To Go is the distance between the current position of the boat and the next waypoint on the route.

WPTnext/TTG/DTG Waypoint Next/Time To Go/Distance to Go. Waypoint Next is the next waypoint on the route. Time To Go is the estimated time required to reach the next waypoint on the route. TTG is calculated using the SOG and DTG. Distance To Go is the distance between the current position of the boat and the next waypoint on the route.

Waypoint/TTG	Waypoint/Time To Go. Waypoint/Time To Go for the next waypoint on the route.
XTE	Cross Track Error is the straight-line distance of the boat from the intended Track. XTE
	measures how far the boat is off course, and also triggers the Off Course Alarm.

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