Garmin GPSMAP 4000 User Manual
Page 51
GPSMAP 4000 Series Owner’s Manual
4
u
SInG
S
onar
U
Sin
G
S
onar
magnified area.
4x Zoom—four times the magnification. Select
Up
,
Down
, or
Auto
to set the depth range of the
magnified area.
Bottom Lock—locks the zoom window to the bottom. Select
Up
,
Down
, or
Auto
to set the
depth range of the magnified area.
Depth Line—quickly reference a specific depth (
On
or
Off
). When
On
is selected, press up or
down on the
ROCKER
to set the depth of the reference line.
A-Scope—creates a vertical flasher along the right side of the screen (
On
or
Off
).
Sonar Setup—opens the Sonar Setup screen. See
•
•