Greg,
I'd built an extension for the 797 some years ago by cutting and joining 3 x 10 metre extension cables. It worked quite well (providing that it was close to the seabed) and achieved some good results. I will no doubt buy another transducer for the 898 and extend that with Cat6 pimf. Is there a recommended maximum length using Cat6?
Thanks for your advise.
Best regards
Peter