[CA] [CA11] RV-200xx installation location

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum jfitch,

RV Thru-Hull Transducer Pairs have been designed and tested for a maximum separation of 4'. Should this distance be exceeded, then it may well cause a blind spot directly beneath the keel. One of the primary keys to any sonar imaging is to ensure that the transducers are afforded a non-aerated flow of water across the face of the transducers. Many boat manufacturers will specify and/or provide hull features to support installation of transducers within a location which will maximize sonar performance. As indicated within the RV Thru-Hull Transducer Installation Guide, it is common for displacement hulls to install transducers approximately 1/3 aft of the forward most point of the waterline. For planing hulls with inboard propulsion, the transducers would commonly be installed approximately 1/3 of the waterline's depth fwd of the stern.