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Understanding the temp log screen, Setting up sonar – Garmin GPSMAP 545s User Manual

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GPSMAP 400/500 Series Owner’s Manual

Using Sonar

Understanding the Temp Log Screen

If you are using a temperature-capable transducer, the Temp Log

screen keeps a graphic log of temperature readings over time. The

current temperature and the depth are shown in the top-left corner.
From the Home screen, select

Sonar

>

Temp Log

.

Press

MENU

to set the duration and the scale for the log.

Temperature

range

Time

elapsed

Temp

and

depth

Temp Log

The temperature appears along the right side, and the time

elapsed appears along the bottom. The graph scrolls to the left as

information is received.

Setting Up Sonar

Use the Sonar Setup screen to define and adjust settings universal to

all sonar screens.
From the Home screen, select

Sonar

>

Sonar Setup

.

Scroll Speed—adjust the rate at which the sonar scrolls from

right to left (Ultrascroll

, fast, Medium, or Slow). If using a

speed-capable transducer, select

auto

to have the scroll speed

automatically adjust to the water speed of your boat.
Surface Noise—show or hide the sonar returns near the surface of

the water. Hide surface noise to help reduce clutter.
depth Line—quickly reference a specific depth (Show or Hide). To

set the depth of the reference line, select

Show

, and then press up or

down on the

Rocker

.

a-Scope—display a vertical flasher along the right side of the

screen.