[TG] More powerfull transducer for Axiom9

[Tom - Raymarine - Moderator]

Hello Reverie,

Yes, that sounds like you're getting close to the normal depth limits for the RV's low-power chirp sonar, and that you've already done a fair bit of research on this.

You are correct that if you connect a 600W 50/200kHz Airmar transducer to the RV via a Y-cable, the 50/200kHz transducer is used instead of the RV transducer's chirp sonar channel. This is because both transducers offer a ~200kHz channel and we didn't think it made sense to add cost by doubling-up on transmit/receive electronics on that frequency in order to be able to operate both at once. You can operate the 600W transducer with any other RV transducer channel (side, down, 3D), just not the chirp sonar. You can't, in a practical sense, switch between transducers - although plugging/unplugging the 600W transducer between uses would work, you'd need to power the display off before doing so. Don't be tempted to try to cut cables and splice in a switch, there are numerous pitfalls with that and high voltages on the transducer cables.

I'd either use the 600W transducer and be content with that as the fishfinder channel, or see about upgrading the Axiom for an Axiom Pro in order to use both at once.

Regards,
Tom