Dixie Life
Senior Member
My SOG reading isn't stable at all. It varies from 6 kt. to 10 kt. at tenth of a kt. increments in a matter of seconds. The readings are being taken in calm conditions. The equipment is all Ray Marine; e7D and auto pilot head unit. Has anyone out there had this problem. The speed is being received from the internal GPS on the e7D. I compared it to a speed app on my phone; phone read a constant 7 kts. Any advice? And no, I'm not going to use my phone for speedometer. lol.