Hunterjt, this is the noise I got on my 898..I have a Terrova 12 volt TM...I ended up by running my xducer wire & a ground wire in the Terrova channel..I connected the ground wire to the negative post of my TM battery..Now I only get noise on 800khtz..HB is sending me a TMC-1 choke to see if that helps..I never did have noise on 2D..I will let you know if the choke clears it up on 800.

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