Lowrance M52 S/GPS Installation And Operation Instructions Manual page 41

• Depth Cursor command: displays a cursor line on the sonar chart
which allows you to accurately measure the depth of a sonar target.
• Overlay Data command: chooses what types of information (such as
water temperature) to show overlaid on the sonar chart screen.
• Sonar Features command: launches the Sonar Features menu which
controls many functions and options, including screen color mode, auto
depth and sensitivity, surface clarity, noise rejection, Fish I.D. sym-
bols, the zoom bar and zone bar.
• Ping Speed command: sets the rate at which sonar pings are made.
Pages
The M52 has four major Sonar display options. They are the Full Sonar
Chart, Split Zoom Sonar Chart, Digital Data and Flasher.
You access the various display modes by pressing the
|↑ or ↓ to desired page|
to
S
ONAR
The Full Sonar Chart is the main Sonar display option. This is a "cross-
section" view of the water column beneath the boat. The chart moves
across the screen, displaying sonar signal echoes that represent fish,
structure and the bottom.
Digital data
overlay
(depth &
temperature)
Fish arches
around
school of
bait fish
Structure
Surface signal
Bottom signal
Sonar Page, showing full sonar chart mode.
.
ENT
35
key. Press →
PAGES
Surface clutter
Depth scale
In FasTrack, fish
arches show as
horizontal bars.
Zoom bar
bar graph
FasTrack