- #1
chingkui
- 181
- 2
Does anyone know why on some cable channels I didn't subscribe, I can still see something (with a lot of distortion and noise), while I can't see anything at all in some others?
How are the signal modulated and encoded? Are they encrypted? How come some channels are encoded that I can still "see" even I am not a subscriber? What does a subscriber have that enable him/her to decode the signal? Is it just an encryption code?
How are the signal modulated and encoded? Are they encrypted? How come some channels are encoded that I can still "see" even I am not a subscriber? What does a subscriber have that enable him/her to decode the signal? Is it just an encryption code?