3-19-2011 11175 USB 2233z Otis 63 / Offutt; request p/p DSN 582-3800 Otis ops. 11175 USB 2237z Otis 61 calls Offutt several times with no joy. Lots of helos using R5802 Kiowa range last week, didn't catch any callsigns except for Balky range control on 237.2. Rich - Reading, PA