GYT350S is a direct modulation 1550nm DFB transmitter for analog TV, digital TV and satellite 950~2150MHz signal fiber dense distribution. The transmitter utilizes high linearity DFB laser, RF power digital automatic process technique, along with RF pre-distortion circuit. The built-in microprocessor monitors the transmitter working status and automatically ensures the optimistic performance. GYT350S is ideal for analog TV fiber distribution within 20Km.