I've done a little research on the broadband radar. from what I've read (I haven't had my hands on one), they are excellent at close range; say less than 2-3 miles. They are also instant on, which is a nice feature. The one drawback I've heard about is that since they are low power devices, there isn't enough transmitted energy to "light up" a racon bouy. Since these are on the river entrance bouys here on the West Coast, that is an issue for me.
Since most of our craft have a horizon of about 8-10 miles, I'm not that concerned about the long range 36-48 mile radars, other than they have a higher power output, so have a somewhat better chance of "seeing" smaller targets in marginal conditions.
There is a marine electronics website www.panbo.com
if you're interested in seeing more on the subject.
Welcome to the forum - what a great boat!