Furuno 1954C-BB manual

Furuno 1954C-BB
9.6 · 1
PDF manual
 · 223 pages
English
manualFuruno 1954C-BB
4. VIDEO SOUNDER OPERATION

4-20

4.15 Interpreting the Sounder Display

4.15.1 Zero line

The zero line (sometimes referred to as the transmission line) represents the transducer’s
position, and moves off the screen when a deep phased range is used.
Zero line
Shift
Zero line

4.15.2 Bottom echo

Echoes from the bottom are normally the strongest and are displayed in reddish-brown, but
the color and width will vary with bottom composition, water depth, frequency, sensitivity,
etc.
In a comparatively shallow depth, a high gain setting will cause a second or sometimes a
third or a fourth echo to be displayed at the same interval between them below the first
echo trace. This is because the echo travels between the bottom and the surface twice or
more in shallow depths.
The color of the bottom echo can be used to help determine the density of the bottom
materials (soft or hard). The harder the bottom, the wider the trace. If the gain is set to show
only a single bottom echo on mud, a rocky bottom will show a second or third bottom return.
The range should be chosen so the first and second bottom echoes are displayed when
bottom hardness is being determined.
Intensity difference
in water depth
Second bottom
echo
Rock base
Mud and sand
Bottom echoes

Manual

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Furuno 1954C-BB specifications

Below you will find the product specifications and the manual specifications of the Furuno 1954C-BB.

General
BrandFuruno
Model1954C-BB
Productmarine radar
LanguageEnglish
FiletypeUser manual (PDF)

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