Advanced sonar settings – Garmin 5008 User Manual
Page 52
48
GPSMAP
®
4000/5000 Series Owner’s Manual
Using Sonar
Using Sonar
Advanced Sonar Settings
To adjust advanced sonar settings, select
Menu
while viewing a sonar screen.
Gain—controls the sensitivity of the sonar receiver (Auto or, to adjust manually, Up or Down). To
see more detail, increase the gain. If the screen is cluttered, decrease the gain.
Sonar Scroll—select to stop scrolling. Select
Create Waypoint
to save the location as a waypoint,
and select
Resume
to continue scrolling in real time. For more information on waypoints, see
Frequency—selects how the frequencies appear on screen (200kHz, 50kHz, or Dual).
Zoom—zoom in to a section of the Full Screen. The zoom is off, or set to No Zoom, by default.
Four options are available:
2x Zoom—twice the magnification. Select
Up
,
Down
, or
Auto
to set the depth range of the
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.
No Zoom—turns zooming off.
Depth Line—quickly reference a specific depth (Show or Hide). When Show is selected, press
up or down on the
ROCKER
(GPSMAP 4000 series) or touch and drag the line (GPSMAP 5000
series) to set the depth of the reference line.
Range—the range of the depth scale on the right side of the screen (Auto, or to adjust manually, Up
or Down
)
.
Sonar Setup—opens the Sonar Setup screen. See
.
•
•
•
•