I have the XM weather service on my humminbird, and I assume they would be the same because they are owned by the same company. I really like it. You can setup how far away the inclement weather is from you before it will pop up on the screen of the warning. It works great the only thing I don’t like is when I am fishing on the Canadian border it doesn’t show anything in Canada, so if the weather is coming from Canada you can’t see what the radar looks like. I think that you can just suspend your service for up to 6 months, and then there is no re-activation fee. I ran mine from April to October, and shut it down for the winter. I know that the XM antenna was cheaper than the Sirius antenna for some reason. Most likely because Lowrance seems to enjoy gouging their customers for extra cash more so than humminbird does.

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