I'm running a echomap Chirp 73sv on my kayak with no other electronics what-so-ever, so there shouldn't be any interference, right? During my last trip out, my downview showed this stripe at 2 feet the entire trip. Any ideas?



This pic is from earlier in the summer; the line is at least fainter here.



The transducer is mounted 2-3" below the bottom of my kayak, so there shouldn't be physical interference.