RF Products Videos

The major challenge of delivering high-speed data, new HD video channels or digital streaming services in a cable system is the limitation on the available RF spectrum. The typical RF bandwidth in the majority of HFC networks today is still 750 MHz. DOCSIS 3.1 defined an upper bandwidth limit of 1.8 GHz but only provided specific requirements for operation up to 1.2 GHz. To fend off fiber and future wireless competitors, cable operators need a multi-gigabit-capable symmetrical network with up to 10 Gbps downstream capacity. The CableLabs DOCSIS 4.0 specification initiative will define the requirements needed for the operation of the entire 1.8 GHz bandwidth allocation.