[CA] Transducer Problem?

[Chuck - Raymarine - Moderator]

Joe,

As indicated within the FAQ referenced at the beginning of this thread, all hulls are not equally suited for planing speed operation with transom mounted transducers. Hulls having very shallow draft represent a particular challenge in permitting a non-aerated flow of water to pass beneath a transom mounted transducer. In larger vessels, this issue is commonly addressed by installation of a compatible thru-hull transducer. In systems featuring a MFD where CHIRP/DownVision fishfinder imaging is desired, this limitation is often overcome by networking the MFD to a device having 50/200kHz fishfinder circuitry and then installing a compatible thru-hull or in-hull 50/200kHz transducer. When operating at planing speeds, the MFD would then be configured to display fishfinder imaging from 50/200kHz transducer. As Dragonfly products are not designed with communications interfaces to permit them to be interfaced to other marine electronics products, this alternate solution does not apply to Dragonfly products.

The only additional recommendation that may be made is to try dropping the aft end of the transducer a notch or two to determine whether it improves performance.