[CA] [CA11] Odd interference on axiom units

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum Farmhand,

Regarding the drain leads/terminals of Raymarine products, please click here to view a FAQ addressing this subject. Regarding the interference issue, while I understood your troubleshooting to indicate that the problem could be duplicated with everything OFF, did this include the vessel's engines? If not, please re-test with the engines off. With respect to the noise observed, is it only visible when viewing the Fishfinder application? If so, please use the MFD's Capture Screen Image feature to save a copy of the screen's image (when exhibiting the reported issue) to a microSD memory card within the MFD's memory card reader. The saved PNG file may then be attached to your response for further analysis.