What standard is used to transmit Digital cable in the US?
I have digital cable. I need a set-top box to see the channel guide and menus as well as to watch some of the premium channels like HBO and the Science Channel. However, I do NOT need to have a cable box to watch the first sixty or so channels like History, NatGeo, and TruTV.
So, what standard are the first sixty or so channels transmitted with (NTSC? ATSC? QAM?)
And what about other channels such as the movie channels and other non-standard channels?
All channels are in QAM.
The only difference is that some channels are encrypted and you need a Cablecard to decode them; that's where the set-top box is needed.
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