Are multi-frequency detectors better than single frequency types?
I have not played with one of the newer multi-frequency types, but I hear they have extremely good depth in some instances. But they have problems in many other instances, such as not being able to discriminate out iron trash at great depths and failure to get good depth while working around electric power lines. Plus, they consume much more battery power. They may be worth the extra cost for some people, but I am not sure yet that simply having more frequencies automatically increases depth.
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