[CA] [CA11] Axiom Pro with CP570 and dual 2kw Transducers

[Chuck - Raymarine - Moderator]

Welcome back to the Raymarine Forum Fish On,

I have some greater clarification to offer on high power (600W, 1kW, 2kW, and 3kW) CHIRP transducers and fishfinder products which are designed to utilize these transducers. High Power CHIRP transducers either designed to support a single CHIRP channel (Low, Medium, or High) or designed to support a pair of CHIRP channels (Low-High (LH), Medium-High (MH), or Low-Medium (LM)). The 1kW CHIRP sounder circuitry of the CP470 and Axiom Pro RVX MFDs features a single set CHIRP processor which is capable of alternating between two CHIRP channels or processing a single channel. As such the CP470 or Axiom Pro RVX MFD may be interfaced to a pair of high power CHIRP transducers supporting a single CHIRP channel (ex. a B175H & B175L; B75M & B75H which have been joined with the Paired CHIRP Transducer Y-Cable (A102146), etc.) or a single high power CHIRP transducer supporting a pair of CHIRP channels (ex. R409LM-W, M265 LH, etc.). In contrast, the 2kW CHIRP sounder circuitry of the CP570 features a pair of independent CHIRP processors which are capable of simultaneously processing a pair of CHIRP channels. As channel alternating is not necessary for the CP570, the ping rate supported by the CP570 will be greater than the ping rate of the CP470 or Axiom Pro RVX MFD when using two CHIRP channels. Like the CP470 or Axiom Pro RVX MFD, the CP570 may be interfaced to a pair of high power CHIRP transducers supporting a single CHIRP channel or a single high power CHIRP transducer supporting a pair of CHIRP channels.

As your R109LH supports a pair of CHIRP Channels, your currently currently installed CP570 cannot be interfaced to a second transducer. Should the R409LM-W be installed and should you desire to drive it at 2kW, then a second CP570 would need to be interfaced to the system to accommodate this this transducer.

Comment: When using more than one high power CHIRP transducer onboard, care should be taken to not transmit the same channel (Low, Medium, or High) from both transducers or interference may result.

I trust that this clarifies this subject.