I have the XM weather and it really helps during the summer months to see the cell movement, tops, rain Db returns (likely severity), lightning strikes, and other important data. I have the aviator package, but it gives most if not all the information I need for boating as well as everything I want as a pilot. The same antenna works on the 396/496, and on marine units 378/478 as well. The 500 series uses a different antenna, unfortunately. |