[CA] [CA11] A78 MFD temperature data source/anchor alarm

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum toddster,

Q. Is there a way to make the fish finder the default data source?
A. Negative. With multiple water temperature sources, the following prioritization exists within MFDs running LightHouse II and LightHouse 3 software.

1. STng / NMEA 2000 Instrumentation
2. MicroNet Instrumentation
3. ST1 Instrumentation
4. NMEA0183 Instrumentation
5. SThs Sonar Modules (highest serial number taking priority)

It would be recommended that the speed/temp insert be replaced within the instrument transducer. Alternatively, the temp lead may be disconnected from the ST40 instrument.