Bought a new terrova with the built in us2 transducer and tried it out yesterday.Worked good at our first stop,pulled trolling motor up and made a move.On our next spot i drop trolling motor and it wont read bottom,2d screen was froze up.Messed with it and when i turned it to 200hrtz it started working again.Let it run for alittle while and switched it back to 83hrtz and it would work on 83 again.Pulled trolling motor and made a move and same thing all over again.Dont know alot about the us2 ,have generic 83/200 transducer selected under transducer selection also,and lowrance units thanks.

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