Abstract: A oscillator bias injector system for use in maritime applications in connection with a VSAT communication system including a satellite modem connected to a commercially available high power block upconverter and low noise block downconverter which are both connected to an outdoor antenna mounted on a stabilized platform, which antenna sends and receives signals from a Ku-band satellite in geosynchronous orbit. The oscillator bias injector is installed between the block upconverter and the satellite modem such that the RF signal generated by satellite modem is combined with an internally generated stabilized 10 MHz reference signal from oscillator, which summed signal is then combined with DC bias generated by an AC rectifier to thereby provide a means of interfacing a custom designed modem to the block upconverter to improve the uplink speed of the VSAT system.