Humminbird 197c di

[Craveman85]

Have any of you used the hummingbird 197c down imaging fish finder for ice fishing?  I know there's other di models that can use the ice transducer but have not seen where anyone has used the 197c di model.

[Jim F]

Down imaging on the ice doesn't work to its full advantage.
 In order to reap the benefits of down or side imaging, your transducer needs to be moving 2-3 mph.
You will see an image using down imaging, but it will appear as regular 2D sonar image.
DI & SI are great tools for locating fish while driving around at slow speed in a boat but no
advantage to ice fishing with one possible exception. If the DI uses a different frequency,
and you are getting interference from other nearby sonar's, it may help you see through the other guys
sonar interference