From the Navigation or Fishing chart, select Options > Layers > Radar > .

From a radar screen, select Options.

Radar To Standby

Stops radar transmission.

Gain

Adjusts the gain (Adjusting Gain on the Radar Screen Automatically).

Sea Clutter

Adjusts the sea clutter (Adjusting Gain on the Radar Screen Automatically).

Radar Options

Opens the radar options menu (Radar Options Menu).

Other Vessels

Sets how other vessels are displayed on the radar view (Other Vessels Layer Settings).

Radar Setup

Opens the radar display settings (Radar Setup Menu).

Edit Overlays

Adjusts the data shown on the screen (Customizing the Data Overlays).