Raymarine e7 User Reference page 152

5. Use the Rotary Control to adjust the boost to the required
setting.
Adjusting SuperHD radar power 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 Power Boost so that Man is highlighted.
Selecting Power Boost will switch between Auto and Manual.
5. Use the Rotary Control to adjust the boost to the required
setting.
152 e7 / e7D — User reference