Papa Deuce
05-05-2008, 08:57 PM
Say you have cable TV. That comes to your home via RF ( coaxial cable ).... it enters your cable box with "X" amount of signal / bandwidth.... The cable box has HDMI outputs. So I have an HDMI cable going to my TV.... the question is, how come the HDMI cable can have a better signal than the amount of the source signal ( The coaxial cable coming from the outside of the house to the cable box ) ?
Is there some kind of amp in the cable box to process the signal for the HDMI?
Brian
05-05-2008, 09:52 PM
Say you have cable TV. That comes to your home via RF ( coaxial cable ).... it enters your cable box with "X" amount of signal / bandwidth.... The cable box has HDMI outputs. So I have an HDMI cable going to my TV.... the question is, how come the HDMI cable can have a better signal than the amount of the source signal ( The coaxial cable coming from the outside of the house to the cable box ) ?
Is there some kind of amp in the cable box to process the signal for the HDMI?
I'm assuming your using digital cable...the signal coming in through the line is compressed to fit through the coaxial. The cable box has a high quality fast decompresser in it that continuously decompresses it upon receiving and sends the uncompressed signal out through the HDMI.
ahahahaha i knew brian would show up you should have called him out by name ;)
bri- did you get my text back? PM Me
Travis B
05-05-2008, 11:24 PM
What Brian is describing is RF Modulation (http://en.wikipedia.org/wiki/Modulation)
