All, Freq: 248.4 Aberdeen Range, Aberdeen Proving Grounds, Maryland Arrow 21- unidentified, probable A-10s Colt flight (A-10s, 104th FS MD ANG Martin State) Low level attacks on shoreline targets using simulated guns and MK-82s. RON ANNE ARUNDEL COUNTY, MD (NEAR BWI) Pro-2045/BC-895XLT w/Discone