Can I send cable Tv from my main set to another set?

The HFC network is bi-directional, meaning that signals are carried in both directions on the same network from the headend/hub office to the home, and from the home to the headend/hub office. The forward-path or downstream signals carry information from the headend/hub office to the home, such as video content, voice and internet data. The return-path or upstream signals carry information from the home to the headend/hub office, such as control signals to order a movie or internet data to send an email. The forward-path and the return-path are actually carried over the same coaxial cable. In order to prevent interference of signals, the frequency band is divided into two sections: typically 52 MHz to 1000 MHz for forward-path signals, and typically 5 MHz to 42 MHz for return-path signals. (Note that this typical frequency split is in North America and South America, but a slightly different split is typically used in Europe and Asia.)