... Minimum viewing distance 10 m Gray scale 819216984 65536level Brightness control 256 level Refresh frequency á1200á4800á2400Hz Driving method ... SDI, RF, etc.— Operating system Windows (2000/XP/Vista/7)— Control distance CAT5 cable:<100 m; Single fiber:<10 km ... month, 14,000sqm factory 5. Management advantage: Serious Management and QC control. 6. Service advantage: Better service fro-after sales About ...