Axiom Questions

[Chuck - Raymarine - Moderator]

EM,

While 100m may be stretching the capabilities of RealVision 3D, you should most certainly expect to have the system report bottom when operating in 3m of water depth beneath the transducer. It is quite possible that interference may be responsible for the reported symptom ... see my prior response concerning how to test the effects or engine noise. Generally speaking, transducer cables should not be bundled with other cables or noise may be picked of from the other cables.