Senior Airman Amos Hommel connects a programming cable to a land mobile radio at the transmissions systems office Feb. 11, 2011 on Joint Base Charleston, S.C. Each LMR has to be individually programmed with the proper channels and functions for the squadron that will be using it. Airman Hommel is a Radio Frequency Transmissions Systems Technician with the 628th Communications Squadron. (U.S. Air Force photo/Senior Airman Timothy Taylor)

Senior Airman Amos Hommel inventories a land mobile radio from a storage container at the transmissions systems office Feb. 11, 2011 on Joint Base Charleston, S.C. Inventory must be taken annually to ensure accountability for more than 1,200 LMRs in operation on JBCHS. Airman Hommel is a Radio Frequency Transmissions Systems Technician with the 628th Communications Squadron. (U.S. Air Force photo/Senior Airman Timothy Taylor)

Senior Airman Amos Hommel visually inspects a tuning cavity or "squirrel cage" on a GRT-22 radio amplifier as part of a periodic maintenance inspection at the transmissions systems office Feb. 11, 2011 on Joint Base Charleston, S.C. Checking for obstructions, corrosion and anything out of the ordinary is crucial to maintaining the units functionality over a long period of time. Airman Hommel is a Radio Frequency Transmissions Systems Technician with the 628th Communications Squadron. (U.S. Air Force photo/Senior Airman Timothy Taylor)

Senior Airman Amos Hommel discharges a high voltage capacitor on a GRT-22 radio amplifier at the transmissions systems office Feb. 11, 2011 on Joint Base Charleston, S.C. The amplifier boosts the ground to air radio's power from t10 watts to 50 watts allowing it to contact aircraft from a much greater distance. Airman Hommel is a Radio Frequency Transmissions Systems Technician with the 628th Communications Squadron. (U.S. Air Force photo/Senior Airman Timothy Taylor)

Senior Airman Amos Hommel performs a meter calibrations on a GRT-22 radio amplifier during a periodic maintenance inspection at the transmissions systems office Feb. 11, 2011 on Joint Base Charleston, S.C. The PMI is performed at designated dates throughout the year to ensure the equipment is functioning properly over an extended period of time. Airman Hommel is a Radio Frequency Transmissions Systems Technician with the 628th Communications Squadron. (U.S. Air Force photo/Senior Airman Timothy Taylor)