Humminbird HELIX 9 Operation Manual page 27

Understand Digital Readouts
The following table displays the digital readouts that are available in the Select Readouts menu or the Select Nav Readouts menu.
The available digital readouts are determined by the installed equipment.
Label
Bearing Bearing
Course Over Ground
COG
(Course)
Depth
Distance to Go
DTG
(Distance)
Estimated Time
ETA
of Arrival
Position (#)
Speed
Temp (#) Temperature
Time
Time + Date Time + Date
Timer
Triplog
TTG Time to Go
VLT Voltage
XTE Cross Track Error
Name Description
The direction to a destination waypoint measured in degrees from
north.
The direction the boat is traveling measured in degrees from North.
When the COG is equal to Bearing, the boat is said to be on course and
will arrive at the destination in the most efficient manner.
The depth of the water from the transducer or digital depth sensor to
the bottom. This measurement includes the depth offset setting.
Depth
If the depth number is flashing, it means the unit is having trouble
locating the bottom. This usually happens if the water is too deep, the
transducer is out of the water, the boat is moving too fast, etc.
The distance between the boat position and the next waypoint on the
route.
The estimated time of arrival to the next waypoint on the route.
The latitude and longitude coordinates of the boat position based on
GPS
the GPS receiver installation location.
Speed is the measurement of the boat's progress across a given
Speed
distance based on the speed measurement provided by the GPS.
The detected water temperature by the transducer's internal
temperature probe or an accessory temperature sensor.
Time The current time.
The current time and date.
The digital readout for the timer set in the Alarms tab (see Manage your
Timer
Control Head: Start the Timer).
The elapsed time since the triplog was last reset, the distance traveled
Triplog since last reset, and the average speed during timed interval. To reset
the triplog, see Getting Started: Reset the Triplog.
The estimated time required to reach the next waypoint on the route.
TTG is calculated using the SOG (Speed Over Ground) and DTG (Distance
to Go).
Power supplied to the control head.
The straight-line distance of the boat from the intended route. XTE
measures how far the boat is off course.
27
Navigation
Readout
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