TOBYHANNA ARMY DEPOT, Pa. - Christopher Morgan, electronics mechanic, Tactical Communications Division's Ground Radio Branch, repairs a connector on a AN/GRC-171 Radio Set. The AN/GRC-171 is a multi-channel transceiver used to provide communications with aircraft. AN/GRC-171 UHF transceivers are used for air to ground communications with combat and support aircraft, and for coordinating mission activities with the control tower, ground control, radar approach control, mobile units, and ground, air search, and rescue equipment. Although the standard AN/GRC-171 radios that operate in the UHF range are not designed for long-range communications, they provide a useful reception range of more than 100 nautical miles. Tobyhanna Army Depot is the Defense Department's largest center for the repair, overhaul and fabrication of a wide variety of electronics systems and components, from tactical field radios to the ground terminals for the defense satellite communications network. Tobyhanna's missions support all branches of the Armed Forces. About 5,600 personnel are employed at Tobyhanna, which is located in the Pocono Mountains of northeastern Pennsylvania. Tobyhanna Army Depot is part of the U.S. Army CECOM Life Cycle Management Command. Headquartered at Fort Monmouth, N.J., the command's mission is to research, develop, acquire, field and sustain communications, command, control computer, intelligence, electronic warfare and sensors capabilities for the Armed Forces.