Raymarine E Series User Reference Handbook page 137

Note: You can adjust the radar's sensitivity to sea clutter using
the MENU > Radar Setup > Scanner Setup > Sea Clutter
Curve menu item.
Enhance echoes functions
Enabling radar interference rejection
In the radar application:
1. Press the ENHANCE ECHOES softkey.
2. Press the INT. REJECTION softkey repeatedly until the ON
option is selected.
3. Press the OK button.
Enabling radar expansion
In the radar application:
1. Press the ENHANCE ECHOES softkey.
2. Press the EXPANSION softkey repeatedly until the ON option
is selected.
3. Press the OK button.
Enabling radar wakes
In the radar application:
1. Press the ENHANCE ECHOES softkey.
2. Press the WAKES softkey repeatedly until the ON option is
selected.
3. Select the appropriate time period.
Adjusting the radar tune control
In the radar application:
1. Press the MENU button.
2. Select the Radar Setup menu item.
3. Select the Scanner Setup menu item.
Using radar
4. Select the Tune menu item.
5. Select the MANUAL option, using the TUNE softkey.
6. Using the rotary control, adjust the level to obtain the maximum
signal strength (indicated by the eight-step horizontal bar).
7. Press the OK button.
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