Can you hear me now?
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)