Raymarine e7 User Reference page 158

4. Select Interference Rejection so that On is highlighted.
Selecting Interference Rejection will switch the function between
On and Off.
5. For non-HD digital radomes you can also select an interference
rejection level:
i. Select IR Level.
Selecting IR Level will switch between Normal and High.
Enabling radar expansion
From the radar application:
1. Select Menu.
2. Select Presentation.
3. Select Enhance Echoes.
4. Select Expansion so that On is highlighted.
Selecting expansion will switch the function between On and Off.
5. For non-HD digital radomes you can also select an interference
rejection level
i. Select Expansion Level.
Selecting Expansion Level will switch between Low and High.
Enabling radar wakes
From the radar application:
1. Select Menu.
2. Select Presentation.
3. Select Enhance Echoes.
4. Select Wakes.
5. Select Wakes time period.
6. Select the required time period.
158 e7 / e7D — User reference