Paul Cournoyer posted a discussion
ST60+ Speed Inaccurate Data
I installed a new ST60+ speed transducer and display this Spring. Initial sea trial and no speed data was displayed- just 0.00. Pulled the transducer and it was not fouled. Spun paddle manually and speed data showed on display. Re-installed and speed is off by approximately 3 knots. Is it normal that a newly installed system would be off like this? And, is it normal that it would need calibrating? Any help is appreciated.See More