S
ETTING
U
P
AND
U
SING
S
ONAR
This section covers the additional sonar options for the
GPSMAP 376C when used in conjunction with a GSD 20 or
GSD 21 Sounder Module. Read the
GSD 21 or GSD 20 Sounder
Module Installation Instructions
to properly install the sounder
module. When you turn on your GPSMAP 376C, the sounder
module automatically turns on.
NOTE:
You
MUST
have a transducer and a GSD 21 or GSD 20
installed and connected to your GPSMAP 376C to use the sonar
features.
The Sonar Page is added to the end of the page sequence when you
are in Marine Mode. To view the Sonar Page, press
PAGE
or
QUIT
repeatedly until it appears.
Showing Sonar on the Map Page
You can change the layout of the Map Page to a split screen to show
the sonar on the Map Page. You must be in Marine Mode to use
sonar.
To show the Sonar Page on the Map Page:
1. Press and hold
PAGE/MODE
.
2. Highlight
Marine
, and press
ENTER
.
3. Press
PAGE
or
QUIT
to open the Map Page.
4. Press
MENU
. Highlight
Set Up Page Layout
,
and press
ENTER
.
5. Highlight
Map with Sonar
, and press
ENTER
.
Map Page with Split Screen
To resize the Map Page sonar split screen:
1. After showing the Sonar and Map Pages together in the split
screen as described in the previous steps, press
MENU
.
2. Highlight
Size Split
, and press
ENTER
.
3. Use the
ROCKER
to move the vertical double-arrow right or
left.
4. Press
ENTER
.
5. To stop resizing the screen, press
QUIT
. You can also press
MENU
, highlight
Stop Resizing
, and press
ENTER
to stop
resizing the screen and retain the previous split setting.
GPSMAP 376C Owner’s Manual
103
S
ETTING
U
P
AND
U
SING
S
ONAR
>
S
HOWING
S
ONAR
ON
THE
M
AP
P
AGE
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