[CA] [CA11] Odd interference on axiom units

[Chuck - Raymarine - Moderator]

Wade,

While some degree of noise would not be uncommon, it is typically not significant and may be eliminated if the MFD is operating with the latest available LightHouse 3 software (v3.5.40 at the time of this response). By selecting Dual Channel Ping Mode (MENU->SETTINGS->SOUNDER->DUAL CHANNEL PING MODE) when using the Sonar channel, the reported noise may be cleared from the high CHIRP Sonar imagery produced by the RV transducer.