Advanced Sonar Settings - Garmin GPSMAP 536 Owner's Manual

• whiteline—highlights the strongest signal from the bottom to
help identify its hardness or softness.
Off (default)—turns off whiteline.
◦
High—the most sensitive setting. Almost all strong returns
◦
are highlighted in white.
◦ Medium—many strong returns are highlighted in white.
◦ Low—the least sensitive setting. Only the strongest returns
are highlighted in white.
Color Scheme—select white
on all sonar screens, but does not change the Temp Log screen or the
Depth Log screen.

Advanced Sonar Settings

To adjust advanced sonar settings, press
sonar screen.
Pause Sonar—stops the scrolling of the sonar screen.
To mark a waypoint at a selected depth:
1. While viewing a sonar screen, press
2. Use the rocker to position the pointer over the fish or structure
you want to mark.
3. Press SELECT.
GPSMAP 400/500 Series Owner's Manual
or blue. This affects the background
MENU while viewing a
MEnU > Pause Sonar.
From the paused screen, press
continue scrolling.
Range—adjust the range of the depth scale on the right side of the
screen (auto, or to adjust manually, Manual Range).
gain—controls the sensitivity of the sonar receiver (auto, or to
adjust manually, Manual). To see more detail, increase the gain. If
the screen is cluttered, decrease the gain.
frequency—when using a dual frequency transducer, select how
the frequencies appear on-screen (200kHz, 50kHz, dual, or auto).
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:
• No Zoom—turns zooming off.
auto 2x Zoom—automatically tracks along the bottom at twice
•
the magnification.
• auto 4x Zoom— automatically tracks along the bottom at four
times the magnification.
• Manual Zoom—set the depth range of the magnified area
depth
manually. Select and then use the
the depth range of the magnified area. Select
the Rocker > Select to increase or decrease the magnification of
the magnified area.
• bottom Lock—locks the zoom window to the bottom.
Using Sonar
MEnU > resume Sonar to
Rocker Select
> to set
Level
and then use