I have had both cable and satellite before. In both cases a coax is run from the source to box that digitally decodes the signal, meaning that coax is transmitting a lot of data, often including high speed internet. Yet running a coax from the cable box to the tv only results in standard def picture. What gives?
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Coax from pole to your set top box carries a DIGITAL signal, usually in the 2-3 gigahertz frequency range. (This is printed on the cable sheath)
Regular RG59 TV coax is only shielded for 27 megahertz and carries an ANALOG signal. Hi Def requires greater bandwidth than that.
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