Boat is a 65 foot steel hull, crab fishing boat. SC30 is mounted on top of mast about 30 ft from water line. Installation consisted of a SC30 connected to a N2K backbone and feeding a Commander P2 autopilot thru the used of a furuno n2k to 0183 nmea converter,sending data to autopilot in 0183 format. We have n2k backbone install with end of line terminator on one end and the SC30 on the other end of the backbone. We have a photo of installation and a sketch of the cabling setup. Will send it soon. Wondering if the hight of the SC30 related to the seize of the ship would cause excessive pitch in head wind to a point that the SC30 lost heading..