Transducer depth (Other Thread )

[Matador]

I find all of this info very interesting because in the past I have had good success getting depth readings THROUGH the ice as long as the ice is clear. Sonar goes through water and ice, but NOT air. So if the ice is good clear ice it works. And I have done that. I sometimes have to put down a small puddle of water so there is now air under the ice but it beats drilling a hole just to get a reading. However, the last time I was out at Rockport I couldn't get this trick to work because of the frozen layer of slush on the ice. There was too much. So what I am saying is that I doubt that any echos you are getting are coming from not having the transducer below the ice.

If you are getting echo from the ice then your gain is probably up too high, or someone else around you has theirs up too much. I have had echos in plain water when the gain is too high.

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