Rwiske; It is best that you read the manual, I know I don't like instructions either but it will tell you everything you need to know like going into advance settings and changing depth on unit and using fishID or arches. Here is the manual site just click on your unit helix then click your di unit. I hope this was a help. If you still have problems post in sonar and electronics forum here and Humminbird-Greg can tell you more. Good luck with your new humminbird Helix they look good. Here is the Humminbird manual site:
HUMMINBIRD: OPERATION/PRODUCT MANUALS


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