There is a $29 fisherman option that I use. I LOVE it! works great. Her is the link tha shows the 3 marine packages.
http://www.xmwxweather.com/marine/da...e-pricing.html
You can alos run it seasonally. There is a $50 startup fee, I complained a little and they waived it. When your done for the season, they turn it off and you can turn it backon whenever you want without another startup fee. You dont have to have any kind of a contract at all.
Capt. Tim