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I'm thinking about getting a new fishfinder/gps combo and like the fishfinders on the Lowrances. I currently have a Garmin 188C with dual frequency 50/200 KHZ transducer. I see a lot of units on eBay with single 200 KHZ transducers. My question: Do any of you use the dual frequency function when fishing for salmon in Puget Sound or do you use mostly the 200 KHZ setting because you're fishing at depths usually less than 200 feet?
Peter
Peter