Master Display Question

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Natch,

Unfortunately, the LightHouse software for the a/c/e/eS/gS-Series MFDs does not presently support selection of a sea temperature data source. The system is instead acting upon a hard coded sea temperature source priority list which appears to be prioritizing the transducer which has been interfaced to the a127 MFD over that of the a128 MFD. In this case, it would appear that the model of transducer which has been interfaced to the a127 has either not been correctly configured within the a127 MFD's transducer settings or is providing erroneous temperature data to the system. Naturally, an in-hull transducer will not be able to accurately report sea water temp. Please click here to view a FAQ addressing how to identify the model of transducer which has been interfaced to the a127 MFD. What model of transducer is interfaced to your a127 MFD? I had a similar situation onboard my own boat and had to work around the feature by installing an instrument temperature/speed through water sensor (requires that an i40 Speed/Bidata, i50 Speed/Tridata, or i70 w/iTC-5 additionally be installed and interfaced to the system), as the aforementioned hard coded sea temperature source priority list prioritizes instrument sea temperature data over that from a fishfinding product.

Please additionally note that a feature request has been logged to consider the support for selecting the sea temperature data source within systems running LightHouse software.

Please click here more information concerning product and feature suggestions.