We had XM on our trawler during the nearly 3 years we lived aboard and
cruised (see www.celebratecruising.com).

It worked from the Maritime provinces in Canada to the Bahamas almost to
Georgetown in the Exumas. Our antenna was slightly shielded by the radar
arch and we probably could have gotten it as far as the turks & Caicos.

We liked it. CNN, Weather Channel, plus all that music and talk you referred
to.

Chuck
www.seleneannapolis.com