Remote controlled boat fish finding. Does this have potential or should it remain decommissioned?

About 4 years ago I bought a rather large remote controlled boat rigged out with remote fish finder for discovering fish while shore fishing. I never really had any luck with it but I did at least manage to detect fish while maneuvering the craft from ashore. Do you think remote fish finder technology has improved enough now for me to make sense out of using this technique again in the future.

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