Lowrance electronic Lowrance Fish-finding Sonar & Mapping GPS LMS-520C - Manual (Page 83)

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3. To set the lower limit, press ↓ to
L
OWER
L
IMIT
|
ENT
. Press ↑ ↓ to change
the first number, then press → to move the cursor to the next number
and repeat until the depth is correct, then press
EXIT
repeatedly.
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.
To turn off upper and lower limits:
From the Sonar Page, press
MENU
| ↓ to
A
UTO
D
EPTH
R
ANGE
|
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 con-
tinues to operate normally. FasTrack gives you a rapid update of condi-
tions directly under the boat. This makes it useful for ice fishing, or
when you are fishing at anchor. When the boat is not moving, fish sig-
nals are long, drawn out lines on a normal chart display. FasTrack con-
verts the graph to a vertical bar graph that, with practice, makes a use-
ful addition to fishing at a stationary location.
Area
"zoomed"
Fish arches
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