SKD211X series is a multi-channel digital TV encoder modulator which developed by our company. The product supports encoding, multiplexing and modulating 2 HD signals and 1 USB video signal into 1 RF signal output. It adopts with a RF loop input port which is convenient for users to mix multiple SKD211X outputs or mix with antenna signals. It is perfect for hotels, hospitals, home entertainment and monitoring, also other digital CATV headend system as well.