A fish finder is a little like a stereo; the matching transducer is like a set of speakers. Buy a better, more powerful stereo and speakers, and you usually can drive louder, crisper audio. The same relationship generally guides the purchase of a fish finder. Buy a 1,000-watt fish finder and a 1,000-watt transducer, and you’ll achieve greater depth range with cleaner returns compared with a 600-watt system. But that’s where the simple comparison ends. Down Low The split screen shows a 1 kW transducer return. “A 600-watt transducer is traditionally operating with a 50 or 200 kHz signal,” [or 83 kHz in the case of Humminbird], says Sean Edmunds, Southeast regional sales manager for Navico (Lowrance and Simrad products). “When you go to the high-power systems, you can usually change frequency; ...![Sport Fishing Mag]()
