94 GPSMAP
®
4000/5000 Series Owner’s Manual
Sonar
Highlighting the Edge
: This feature is available only on the GSD 24 and GSD 26.
You can highlight the strongest signal from the bottom to help dene the hardness or softness of the signal.
1. From the Home screen, select .
2. Select a sonar view.
3. Select > > > > .
Setting the Color Scheme
You can set the color scheme for all sonar screens.
1. From the Home screen, select .
2. Select a sonar view.
3. Select
4. Select an option:
• For the GSD 22, select .
• For the GSD 24/26, select .
5. Select .
6. Select an option.
Setting the Color Gain
: This feature is available only on the GSD 24 and GSD 26.
You can adjust the color gain to increase or decrease the visual intensity of the sonar screen.
1. From the Home screen, select .
2. Select a sonar view.
3. Select > > .
4. Select an option.
Sonar Alarms
Setting the Shallow Water and Deep Water Alarms
1. From the Home screen, select > >.
2. Select > to set an alarm to sound when the depth is less than the specied value.
3. Enter the depth that triggers the shallow water alarm:
• For the GPSMAP 4000 series, use the or .
• For the GPSMAP 5000 series, use the on-screen keyboard.
4. Select .
5. Select > to set an alarm to sound when the depth is greater than the specied value.
6. Enter the depth that triggers the deep water alarm:
• For the GPSMAP 4000 series, use the or .
• For the GPSMAP 5000 series, use the on-screen keyboard.
7. Select .
Setting the Water Temperature Alarm
You can set an alarm to sound when the transducer reports a temperature that is 2°F (1.1°C) above or below
the specied temperature.
1. From the Home screen, select > > > >.
2. Enter a water temperature:
• For the GPSMAP 4000 series, use the or the .
• For the GPSMAP 5000 series, use the on-screen keyboard.
3. Select .
