Put some vegtable cooking under the transducer and it will shoot right thru the ice. That is if you have good ice without a bunch of bubbles in it. Just slop some v.oil on the ice and set the transducer on it. It will shoot thru and tell you everything you need to know. I now live in Georgia but back in the Ice days I would get me a motorcycle battery my depth finder and some vegtable oil. Keep the vegtable oil in your coat or it will freeze too.