Given that coaxial cable is a suitable medium for digital signals, why dont cable boxes with coax "tv outs" just output a digital signal and eliminate the need for DVI and HDMI??? Maybe for backwards compatibility with standard televisions? Would a coax tv out be considered a composite signal? Why not have 2 coax outs? One analog and one digital?
Anonymous
Posted on
good question. over the air antenna sends coax digital or analog signal to tv w/o dvi or hdmi
fx
Unregistered guest
Posted on
DVI and HDMI support copy protection schemes such as HDCP and 5C, an unencrypted digital signal fed via coax will not. Besides cable companies do send a digital signal over coax, it just requires the correct tuner to decode them, ie: a cable box, or a built in QAM tuner in your display will decode unencrypted High Definition programming.