[CA] [CA11] RV-100 Transducer Placement

[Chuck - Raymarine - Moderator]

DFMott,

What is the thru-hull transducer shown presently interfaced to? If compatible with the Raymarine MFD, why not consider using it for bottom tracking while operating a higher speeds than can be supported by the RV transducer. The RV transducer could then simply be used at trolling speeds ... where it primary function (support of fishing) will be supported?


Q1. I believe I have 4"+ there. Wouldn't that be enough space to mount the transducer in position A on my diagram?
A1. According to the RV-100's installation template, it will require a bit over 4" of vertical surface to properly install the transducer such that it satisfies your diagram "A". The transducer should not be installed directly forward of the swing of the propeller, behind any thru-hulls, or behind any chine or other hull features which may produce an aerated flow of water across the face of the transducer. It also would not be recommended that its cable be installed in a manner which would cause it to be run along the bottom.

Q2. If there is room how close can it be to the B163 and the rear of the hull (Where the step begins)?
A2. Raymarine has issued no specifications regarding how far forward of the transom or how close to other transducers that the RV thru-hull transducers may be installed. The requirements simply specify to not locate them directly forward of props or other thru-hulls and to not locate them directly behind other thru-hulls or hull features which may cause an aerated flow of water across the transducer. Installations on challenging hulls are where the experience of a Certified Raymarine Installer may be worth the money spent.

Q3. Are there any benefits to the stainless or bronx over the plastic for a boat that sits in salt water 24/7?
A3. Negative. While all three are compatible with fiberglass, plastic or bronze thru-hulls will typically be used. Some hulls, such as those constructed from wood or aluminum, will require bronze or stainless steel thru-hulls.