Hello & Thanks for any info. I recently put together a Lowrance HDS 9 Gen 3 system. I have a HDS 9 Gen 3 on bow and one on my console. I have a totalscan transducer on my transom & trolling motor and also shoot thru sonar puck in the bilge. I have them link together with the ethernet cable and they are linking fine. Today I took the boat out for the first time since installing it all and my side scan & down scan wouldn't work on my bow unit and just showed a faint image to the screen. Since they are able to share transducers, I switch the bow unit to use the trolling motor transducer and it worked fine. Is there anything else I can check or do I just have a bad transducer on the transom. The sonar works fine, but I don't know if it was reading the totalscan or the puck transducer. Thanks for any info