I bought a Navionics card recently because the website said that it had 2 of my local lakes listed on it. When I went to the 1st lake and switched the chart mode on my Lowrance HDS from the Lowrance map to the Navionics chip, the Navionics map was a ridiculous picture of the lake. So I surmised that this lake was really not on the card.

Well I went to another lake this past weekend that was supposed to be on the card and I got the same result. I will post a pic of the Lowrance chart and then the Naviionics chart.

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Size:  54.9 KBAs you can see, the Navionics map on the right is unhelpful. The Lowrance on the left is great. Is there some other setting on the HDS unit that I must use to get a better picture from the Navionics map? thanks.