If this has been posted previously I apologize though I did do a search for "Lake Delton" so if I missed anything lemme know. They originally had a Thunderbolt which was crushed to pieces when the FD was torn down. From the article I gather they must be getting modulators from FS. They will start with three but expand to seven. It also appears that the FS system will be integrated into the PA systems of the various water/amusement parks in the city to activate with the sirens. It sounds like a great setup! I'll try to run up there soon to see if I can spot any of the units.
http://www.wiscnews.com/news/local/arti ... 8ca41.html