Humminbird 955C manual Cog

531569-1_B - 955c ManE.qxp 3/4/2007 5:04 PM Page 51

Each data window can either be empty or contain one of the following (varies by position and by view):

5 Selectable Data Windows, Used by Standard Chart Views;

Non-Navigation Mode

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.
Temp	The current detected water temperature from an optional-purchase Temperature Probe or
	Temp/Speed accessory.
Aux. Temp	The current detected water temperature from an optional-purchase Temperature Probe or
	Temp/Speed accessory.
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.
Voltage	Power supplied to the control head.
Water Speed	The current speed of the water as it flows past the boat.

NOTE: You can set these 5 readouts with navigation mode settings as well, so that, when you are navigating, these views contain navigation data instead of the regular settings. See Navigation X-Press™ menu: Select Nav Readouts for more information.

8 Adjustable Data Windows, Used by Bird's Eye Big Digits and Chart Big Digits Views; 3 Adjustable Data Windows, Used by Bird's Eye Instrument View and Chart Instrument View; Navigation and Non-Navigation Modes

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.

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