SPANGDAHLEM AIR BASE, Germany -- U.S. Air Force Senior Airman Pedro Escamilla, 52nd Communications Squadron airfield system technician, ascends the Tactical Navigation antenna on Spangdahlem Air Base Jan. 18, 2013. The 1st Communications Maintenance Squadron, the 52nd Communications Squadron and local contractors from Trier, Germany worked together through the cold weather to replace a $180,000 faulty antenna that sat atop a 65-foot tower. The replacement ensures the tactical air navigation system is back online. (U.S. Air Force photo by Senior Airman Aaron-Forrest Wainwright/Released)