1.High linear. 2.Dual RF drive modules. 3.Atuo/Manual control for RF level. 4.Dual RF driven modules. Features:1. Transmits PAL, NTSC, digital, or compressed digital information for CATV and/or its system;2. High linear, optically isolated distributed feedback (DFB) laser;3. Accurate APC, ATC, ALC system;4. Dual RF driven modules;5. Auto/Manual control for RF level;6. Predistortion compensations ...