Garmin 376c Manuale Proprietario

Zoom—allows you to quickly select a display zoom scale or to 

split the display. When a scale other than No Zoom is selected, the 

Adjustment Menu shows a new selection labeled View or Span. The 

Zoom function is divided into six display levels: 

•  2X Split—shows two reduced-size sonar pictures at the same 

time. The right half of the display shows the complete sonar 

picture at its original scale. The left half shows a portion of 

the original picture at 1/2 depth scale.

•  2X Zoom—shows the 2X zoomed picture on the full screen.
•  4X Split—shows two reduced pictures, the right at the 

original depth scale and the left at 1/4 the original depth scale.

•  4X Zoom—shows the 4X zoomed picture on the full screen.
•  Btm (Bottom) Split—shows two reduced pictures, the right 

at the original depth scale and the left showing sonar returns 

from the bottom up. All target depths read as a distance from 

the bottom.

•  Btm (Bottom) Lock—shows returns from the bottom up on 

the full screen.

View/Span—changes the viewing range of a zoomed display. If the 

display is 2X or 4X split, only the zoomed portion on the left side of 

the display is affected by the change. If the display is Bottom Split 

or Bottom Lock, Span adjusts how far off the bottom the unit shows 

data. This option is available when a Zoom scale other than No 

Zoom is selected. 
Gain—allows you to control the sensitivity of the unit’s receiver, 

which provides flexibility in what appears. To see more detail, 

increase the receiver sensitivity by selecting a higher gain. If there is 

too much detail or if the screen is cluttered, select a lower gain.
Target Level—adjusts which colors are used to display sonar 

information. A Color Bar appears on the right side of the screen as 

you adjust this setting. A higher percentage results in more strong-

signaled colors shown on the sonar display. A lower percentage 

results in more weaker-signaled colors shown on the sonar display. 

This setting does not increase or decrease the unit Gain.
Whiteline—controls how the unit shows information about the 

bottom type (hard or soft). With Whiteline Off, the bottom return 

shows as red. Set Whiteline at 

Normal or 1–100% to determine 

bottom hardness. See page 

Frequency—allows you to choose a transducer frequency. 

Frequency refers to the “pitch” of the sound that the transducer 

sends and receives. 

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