Raymarine e7 User Reference page 151

Selecting radar gain presets
These presets require a HD digital or SuperHD radar scanner. Bird
mode requires a SuperHD digital open array scanner with software
version 3.23 or above or an HD digital radome.
From the radar application:
1. Select Menu.
2. Select Auto Gain Mode.
3. Select Buoy, Harbor, Costal, Offshore, or Bird as appropriate.
The option is ticked and the display changes to reflect the new
mode.
Adjusting radar preset gain
Raymarine strongly recommends the use of the preset gain
modes to achieve optimum results. However if required manual
adjustments can be made.
From the radar application, with the required Auto Gain Mode
selected:
1. Select Menu.
2. Select Adjust Gain <Mode>, where <Mode> shall be the Auto
Gain mode already selected.
3. Select Gain to select the Man option.
4. Using the Rotary Control , adjust the gain control to the
appropriate setting (between 0 and 100%).
Adjusting radar color gain
From the radar application, with the required Auto Gain Mode
selected:
1. Select Menu.
2. Select Adjust Gain <Mode>, where <Mode> shall be the Auto
Gain mode already selected.
3. Select Color Gain to select the Man option.
Using radar
4. Using the Rotary Control , adjust the color gain control to the
appropriate setting (between 0 and 100%).
Adjusting radar anti sea clutter
From the radar application, with the required Auto Gain Mode
selected:
1. Select Menu.
2. Select Adjust Gain <Mode>, where <Mode> shall be the Auto
Gain mode already selected.
3. Select Sea to select the Man option.
4. Using the Rotary Control , adjust the Sea gain control to the
appropriate setting (between 0 and 100%).
Adjusting radar anti rain clutter
From the radar application:
1. Select Menu.
2. Select Rain so that On is highlighted
Selecting Rain will switch between rain On and Off.
3. Using the Rotary Control, adjust the control to the appropriate
setting (between 0 and 100%).
Adjusting SuperHD radar antenna boost
From the radar application:
1. Select Menu.
2. Select Adjust Gain <Mode>, where <Mode> shall be the Auto
Gain mode already selected.
3. Select Super HD Controls.
4. Select Antenna Boost so that Man is highlighted.
Selecting Antenna Boost will switch between Auto and Manual.
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