Radio-Shack UHF Satellite Coaxial In-line power supply

This RadioShack power supply is an in-line unit designed to provide power to your UHF satellite coaxial cable. It has one input and one output, and features F connectors for easy installation. The power supply is silver in color and has a model number of Radioshack 10db. It operates on a frequency range of 430-1450 MHZ and is suitable for use with consumer electronics, TV, video and audio accessories, and signal amplifiers and filters.

eBay