Sonar Sharing; Adjusting The Level Of Detail; Adjusting The Color Intensity - Garmin GPSMAP 84 Series Owner's Manual

Sonar Sharing

You can view the sonar data from all compatible sources on the Garmin Marine Network. You can view sonar
data from a compatible external sonar module, such as a GCV
sonar data from other chartplotters that have a built-in sonar module.
Each chartplotter on the network can display sonar data from every compatible sonar module and transducer
on the network, no matter where the chartplotters and transducers are mounted on your boat. For example,
from one GPSMAP 8417 device mounted at the back of the boat, you can view the sonar data from another
GPSMAP device and Garmin ClearVü transducer mounted at the front of your boat.
When sharing sonar data, the values of some sonar settings, such as Range and Gain, are synchronized across
the devices on the network. The values of other sonar settings, such as the Appearance settings, are not
synchronized and should be configured on each individual device. In addition, the scroll rates of the various
traditional and Garmin ClearVü sonar views are synchronized to make the split views more cohesive.
NOTE: Using multiple transducers simultaneously can create cross talk, which can be removed by adjusting the
Interference sonar setting.

Adjusting the Level of Detail

You can control the level of detail and noise shown on the sonar screen either by adjusting the gain for
traditional transducers or by adjusting the brightness for Garmin ClearVü transducers.
If you want to see the highest intensity signal returns on the screen, you can lower the gain or brightness to
remove lower intensity returns and noise. If you want to see all return information, you can increase the gain or
brightness to see more information on the screen. This also increases noise, and can make it more difficult to
recognize actual returns.
1 From a sonar view, select Menu.
2 Select Gain or Brightness.
3 Select an option:
• To increase or decrease the gain or brightness manually, select Up or Down.
• To allow the chartplotter to adjust the gain or brightness automatically, select an automatic option.

Adjusting the Color Intensity

You can adjust the intensity of colors and highlight areas of interest on the sonar screen by adjusting the color
gain for traditional transducers or the contrast for Garmin ClearVü and SideVü/ClearVü transducers. This
setting works best after you have adjusted the level of detail shown on the screen using the gain or brightness
settings.
If you want to highlight smaller fish targets or create a higher intensity display of a target, you can increase the
color gain or contrast setting. This causes a loss in the differentiation of the high intensity returns at the
bottom. If you want to reduce the intensity of the return, you can reduce the color gain or contrast.
1 From a sonar view, select Menu.
2 Select an option:
• While in the Garmin ClearVü or SideVü sonar view, select Contrast.
• While in a Panoptix LiveVü sonar view, select Color Gain.
• While in another sonar view, select Sonar Setup > Appearance > Color Gain.
3 Select an option:
• To increase or decrease the color intensity manually, select Up or Down.
• To use the default setting, select Default.
Sonar Fishfinder
sonar module. In addition, you can view the
™
75