... 4.Output level:25 dBmV 5.CATV 1550nm Optic transmitter Product description: HT8500HC (CATV wavelength)HT8500HU (ITU wavelength ... adjustable)Advanced Type CATV Externally Modulated 1550nm Optical Transmitter(47~862MHz,CNR1≥53dB,SBS:13~18dBm adj.)Externally ... an important role.Externally modulated technology for 1550nm optical transmitter has no laser chirp, low dispersion distortion, and ...