After long searching for VMFA-312 Base with no success, I have (after several days of monitoring and taping) been able to confirm that 299.275 is VMFA-312 Base. VMFA-312 is an F/A-18A+ unit at MCAS Beaufort, SC. Mac McCormick "Green Comms Suck" Savannah, GA http://mywebpages.comcast.net/kf4lmt/index.html