7/11/2012 - SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Megan McMillan, 52nd Communications Squadron ground radar systems technician, verifies the radar air picture on a maintenance indicator at the ground radar maintenance shop here July 10. The radar air picture is the display the controllers use to monitor the weather and aircraft over Spangdahlem and the indicators are checked to ensure the accurateness of the visual quality for the air traffic controllers. Ground radar systems provide data used by air traffic controllers to manage Spangdahlem air space for U.S. and NATO aircraft. (U.S. Air Force photo by Senior Airman Christopher Toon/Released)

7/11/2012 - SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Megan McMillan, 52nd Communications Squadron ground radar systems technician, checks the sensitivity time control on an indicator at the ground radar maintenance shop here July 10. The correct STC makes all aircraft appear the same size on the indicator ensuring the presentation is readable for air traffic controllers. Ground radar systems provide data used by air traffic controllers to manage Spangdahlem air space for U.S. and NATO aircraft. (U.S. Air Force photo by Senior Airman Christopher Toon/Released)

7/11/2012 - SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Megan McMillan, 52nd Communications Squadron ground radar systems technician, verifies the sensitivity time control readout on an oscilloscope using a reference book at the ground radar maintenance shop here July 10. The inspection ensures air traffic controllers have a legible indicator to monitor air traffic. Ground radar systems provide data used by air traffic controllers to manage Spangdahlem air space for U.S. and NATO aircraft. (U.S. Air Force photo by Senior Airman Christopher Toon/Released)

7/11/2012 - SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Rachel Henry, 52nd Communications Squadron ground radar systems technician, performs a daily preventive maintenance inspection meter reading on a radar transmitter at the ground radar maintenance shop here July 10. The reading is checked to ensure the radar is working properly. Ground radar systems provide data used by air traffic controllers to manage Spangdahlem air space for U.S. and NATO aircraft. (U.S. Air Force photo by Senior Airman Christopher Toon/Released)

7/11/2012 - SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Megan McMillan, 52nd Communications Squadron ground radar systems technician, checks the output of power using a power meter at the ground radar maintenance shop here July 10. The inspection ensures the radar is putting out the right amount of power and running to the best of its capabilities. Ground radar systems provide data used by air traffic controllers to manage Spangdahlem air space for U.S. and North Atlantic Treaty Organization aircraft. (U.S. Air Force photo by Senior Airman Christopher Toon/Released)

7/11/2012 - SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Megan McMillan, 52nd Communications Squadron ground radar systems technician, checks modem video output levels using an oscilloscope at the ground radar maintenance shop here July 10. Having correct output levels ensures the quality of signals from the radar to the air traffic controller’s location is ideal. Ground radar systems provide data used by air traffic controllers to manage Spangdahlem air space for U.S. and NATO aircraft. (U.S. Air Force photo by Senior Airman Christopher Toon/Released)

7/11/2012 - SPANGDAHLEM AIR BASE, Germany – Airman 1st Class Megan McMillan, 52nd Communications Squadron ground radar systems technician, checks the voltage on a radar processor power supply using a digital volt meter at the ground radar maintenance shop here July 10. The inspection ensures the correct voltage is being distributed throughout the processor. Ground radar systems provide data used by air traffic controllers to manage Spangdahlem air space for U.S. and NATO aircraft. (U.S. Air Force photo by Senior Airman Christopher Toon/Released)