[CA] [CA11] Axiom pro/rv312

[Chuck - Raymarine - Moderator]

Jarmstrong,

Q. not sure how to interface the rv312 transducers ?
A. I'm a bit perplexed about this statement / question. While it appears that you have purchased and installed an Axiom Pro RVX MFD, I must make it clear that RealVision transducers cannot be interfaced to an Axiom Pro S MFD. Should an Axiom Pro RVX MFD (model not specified within this thread) have been installed, one would find that it features a 1kW fishfinder transducer socket as well as a RealVision fishfinder transducer socket. Axiom Pro S MFDs feature a single fishfinder transducer socket. Tilted Element RealVision fishfinder transducers must be installed as a starboard and port pair. Failure to install both Tilted Element RealVision fishfinder transducers will prevent the system from properly using the transducers. Tilted Element RealVision fishfinder transducer sets are packaged with a Y-Cable which must be used to join the Tilted Element RealVision fishfinder transducers to one another. A RealVision fishfinder Transducer Extension Cable will then be used to interface the Y-Cable to the Axiom Pro RVX MFD's RealVision transducer socket. Be certain that all locking rings of the transducers, Y-Cable, and extension have been installed and have been rotated into the locked position.

Should you have interfaced the Tilted Element RealVision fishfinder transducers to the Axiom Pro MFD in the manner that I have specified within this response, then please go back to my earlier post regarding software. Don't assume that a recently purchased MFD will automatically have the latest software installed within its memory. The currently installed version of software may be determined via the command sequence HOME->SETTINGS. Also as indicated, following the v3.11.42 software update, the aforementioned Power ON Factory Reset (see link within my earlier post for instructions regarding how to perform this type of reset) should be performed.

Should all of the above have been performed, then as indicated the fault may reside within the transducers or the MFD itself. Should the RV transducers not be recognized by the MFD's sounder circuitry, then the Fishfinder application will display NO TRANSDUCER DETECTED. However, should the RV transducers be recognized by the MFD's sounder circuitry, then the bottom portion of the Fishfinder application's MENU will list 3D VISION, SONAR, SIDEVISION, and DOWNVISION channels. As indicated previously, when operating in shallow water and seeking to track bottom, the DownVision or Sonar channel would typically be recommended to be viewed. Either of these applications should produce a plot ... even out of the water. The plot may not be meaningful, may be nothing more than a succession of spaced lines, but one should be produced. Should the system be unable acquired bottom and report a value for depth, then the range scale will be seen to change as well as the sounder adjusts for new depth ranges in an attempt to find the bottom.

The power output of RV transducers is too low to be heard ... even with the aid of a stethoscope.