Humminbird Side Imaging Forums
General => General Discussion => Topic started by: petersiowsdi on August 09, 2018, 11:13:05 PM
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I just bought a unit of second hand hummingbird 1197c, I tested it with a pail of water indoor, but the unit is not giving any depth readings or sonar image (even erratic signal). I have tried all settings in the unit but no luck, any one can help to advice what else I can check?
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Have you tried Restore Defaults under the Setup ...??
Testing in a bucket may not give definitive results ... Can you test on the water ...??
Rickie