Army depot installing small mobile radio gear

TOBYHANNA ARMY DEPOT, Pa. -- Technicians from the U.S. Army Tobyhanna Army Depot, Pa., are installing small versions of the Digital Group Multiplexer (DGM) system on heavy High Mobility Multi-Wheeled Vehicles (HMMWVs) to move Army mobile communications away from 5-ton trucks.

Tobyhanna experts are installing the DGM systems, which are composed of the AN/TRC-173B/175B radio terminal sets, the AN/TRC-174B/138C radio repeaters, and DGM antenna mast program antennas.

Each of these line-of-sight systems has a 12-mile communications radius. Tobyhanna's efforts to shrink the size of the DGM radio equipment, which also include use optical fiber to link separate vehicle-mounted equipment, helps Army officials transport complete systems on two HMMWVs, where previously they needed two 5-ton trucks, Army officials say.

DGM equipment helps Army experts transmit and receive trunk groups and maintains line-of-sight communications for combat echelons above corps signal units.

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