X515C DF & X510C Manual - Lowrance

Fish arches
Area "zoomed"
Normal display, in auto depth range mode (left). Display "zoomed" with
Upper and Lower Limits focusing on the portion of the water column
from 20 feet to 40 feet deep (right). In the "zoomed" image, note the target
definition at lower left, showing a fish holding just above the structure.
Top right, two game fish are attacking a school of bait fish.
To turn off upper and lower limits
1. From the Sonar Page, press MENU|↓ to AUTO DEPTH RANGE|ENT|EXIT.
FasTrack
This feature automatically converts all echoes to short horizontal lines
on the display's far right side. The graph on the rest of the screen continues
to operate normally. FasTrack gives you a rapid update of conditions
directly under the boat. This makes it useful for ice fishing, or
when you're fishing at anchor. When the boat is not moving, fish signals
are long, drawn out lines on a normal chart display. FasTrack
converts the graph to a vertical bar graph that, with practice, makes a
useful addition to fishing at a stationary location.
Surface clutter
Fish arches
Structure
Bottom signal
In FasTrack, fish
arches show as
horizontal bars.
Sonar Page showing FasTrack.
FasTrack
bar graph
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