If the GyroTrac is the heart of the system, the sunlight-readable, 41/4-inch diagonal monochrome LCD is the soul. Your heading, the primary information, appears in the upper left of the screen in large, bold, easy-to-read numerals. An analog bar graph display just below the heading indicates the magnitude and direction of any deviation from that heading, and the digital value of the heading error shows below the bar graph. Off-course guidance for the helmsman can also be provided from an accessory port-starboard analog meter. Night lighting presents black text on a green or red adjustable-brilliance background.