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That is the big problem with the hummingbird and why you should buy a Marcum. you just have to move far enough away to get rid of it.
Never had a problem with my ice 35. And haven't had a problem with my helix 7ice yet.
I'm not trying to knock on the humminbird products but I owned a ice 35 for 3 ice seasons and then oooops won some money at blackjack and decided to buy the marcum lx7 and it blows the himminbird products out of the water, they are expensive, think it was 1000 dollars by the time all said and done but can't get a better view of what is going in down there than the lx7 depth sonar display, let's u know if there's a hot dog wrapper floating by
I currently run the 35. Like it but may want to upgrade and the ice helix7 has caught my eye. How do you like it?
Love it. I had a helix 5 GPS and sold to a buddy to get autochart to share maps with my buddy. And then heard about the helix Ices and was instantly sold. Now everything is all in one and take it with summer or winter from boat to boat or from flip over to passenger seat of my pickup as you follow the GPS to the next spot. Just remember to turn the brightness down if you will be on the lake all day.