Alpena, Michigan maintains a system of sirens. It consists of 3 ASC T-128s (quite a rarity up here) and 5 2001-130s. One of the 2001-130s replaced a Model 5. Someone on the statewide map team found four more and added them to the map. Kudos to whoever did that (assuming they see this post), now I have something to look forward to filming soon!
Also, what kind of scanner would people recommend? I'm in the market.