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3 Fishnder 340C Owner’s Manual
usIng the fIshfInder 340c > confIgurIng AdvAnced dAtA fIelds
The following selections require the proper NMEA data to view
information in a data eld: Bearing, Compass, Course, Distance to
Next, Off Course, Pointer, Position, Speed, Time Of Day, Track,
Turn, and VMG. You must turn on NMEA Input/Output to receive
this data (see page 32).
To toggle the data eld appearance:
PressandreleasetheDATA/CNFG key to alternate
betweentheBasicandAdvanceddataeldcongurations.
To change or add an advanced data eld:
1. PressandholdtheDATA/CNFG key to access the
AdvancedDataMenu.Thecurrentcongurationappearson
theleftsideofthescreen.Theavailabledataeldoptions
appearontherightside.
2. Use the ROCKER to select the Wide or Narrow tab.
3. PressdownontheROCKERtoselecttheslider.Then
pressleftorrighttodeterminethequantityofeldsofthat
size.
4. PressdownontheROCKERtoselectaeldthatyou
want to change. Press ENTER to see your choices. Press
ENTER again to select your choice. Your choice appears as
anewdataeld.Repeatthisstepforeacheldyouwantto
change.
5. Whenyouarenished,pressQUITtoexittheAdvanced
Data Menu. Your new choices appear on the screen.
Data Field Denitions
 (bearing)—the compass direction from a location to a
destination, measured to the nearest degree. When using a GPS
receiver, bearing usually refers to the direction to a waypoint from
your current location.
 (course over ground)—your direction of movement relative
to a ground location.

(desired course over ground)—the compass course between
the “from” and “to” waypoints.

(distance to next)—the length from your current
location to the next waypoint.

(depth)—the depth of the water
If the Fishnder is unable to track the bottom for any
reason, the digits which indicate depth ash on and off to alert
you that the Fishnder is not tracking the bottom.
—an arrow that points toward a destination waypoint
from your current position (BRG). This eld requires NMEA input.
 (speed over ground)—the actual speed that the GPS unit is
moving over the ground. This eld requires NMEA input.
 (speed through water)—the speed as calculated by an
optional speed sensor on the transducer.