When connected to a Raymarine E-Series Widescreen MFD, HD Digital Radome Scanners feature automatic “Bird Mode” radar scanning, turning your radar system into a long-range fishfinder. Sea birds naturally congregate above schools of baitfish. At the same time, game fish also congregate near the bait. With the touch of a button the radar intelligently configures itself for best detecting these birds at distances up to 6 nautical miles