The RCA D903 In-line Satellite/Cable Amplifier is a linear amplifier designed to boost satellite and cable signals in the frequency range of 950–2050 MHz. With a gain range of 13-18 dB and a noise figure of 0.11 dBµ, this unit offers reliable signal amplification and filtering for improved TV and video reception. The model D903 is compact and easy to install, making it a convenient solution for enhancing your TV viewing experience.