CASE STUDY : Pohang Iron and Steel Company (POSCO), Korea 1 POSCO (Pohang Iron and Steel Company) is one of the largest steel manufacturers in Korea. With over 33 million tons of steel being produced through its plants and factories, POSCO was the first company in Korea to establish a private network using Motorola’s analog trunked radio systems in 1995. Not resting on its laurels, in 2008, POSCO pushed out a migration plan to replace its analog system with Motorola’s latest digital TETRA (TErrestrial Trunked RAdio), which is another first among domestic private enterprises in Korea. “The analog trunked radio system we introduced in 1995 was still better than the conventional two-way radios in terms of frequency and coverage, but the new TDMA-based digital TETRA system has a frequ

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