Old Depth Transducer and new ITC-5

[Chuck - Raymarine - Moderator]

Mark,

While I don't suspect that any damage may have occurred to the iTC-5, the difference in expected transducer frequency is likely responsible for the reported symptom. No adjustments for depth transducer frequency are supported/provided within this product. Per my initial response, It is recommended that the currently installed transducer be replaced with one of the analog instrument depth transducer's found Raymarine’s web site.