1. In this screen grab, the sailor is pacing to arrive at the start line in 16 seconds. The boat’s sensors aid the MFD in accurately portraying a tidal current (blue arrow), and to help determine that the right side of the line is favored by 6.7-boat-lengths (blue box, lower right). Mark Chisnell details the other features shown in this image (see www.bandg.com/blog/racepanel-series-with-mark-chisnell-part-5-sailsteer/).

2. Four sensitive GPS antenna spaced within inches of each other inside the Furuno compass housing enable it to sense the boat’s heading, just as a compass would, even if the boat is not moving.

3. If your boat isn’t constructed of carbon fiber, metal, or other materials that entirely block GPS signals, you can consider installing the antenna inside your boat. On Strider, the Furuno SCX20 was installed in the V-berth using the rail mount option. The single NMEA-2000 cable runs through the mount.