HSGF2600 cable TV and satellite medium frequency low-power optical transmitter, which works in CATV 45-862mhz and sat-if 950-2150mhz bandwidth, can also work in CATV or sat-if band alone, and can be loaded into coaxial optical emitting tube at 1310nm or 1550nm by low-noise amplification of gaas, and output optical signal of corresponding wavelength and relevant specification optical power. In order to cooperate with the satellite high-frequency head polarization and 22K selection mode, the machine adds a selection switch and coordinates with the POWER indicator to correspond to the POWER supply and 22K online state, namely 13V POWER green light, 13V+22K POWER green light flashing, 18V POWER red light flashing, 18V+22K POWER red light flashing; Optical lights represent the power of Optical transmission, with > 1.5mw green light, >1mW ~ < 1.5mw yellow light and <1mW red light. This machine can realize high quality and long distance transmission through optical fiber. It is suitable for receiving different points of satellites of research institutes, schools, operators and individual users in residential areas.