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Originally Posted by Bludger
Good point, I hadn't thought of that. How can the cable need replacing if the downstream is working? Isn't the only difference the frequency they use. I'm sure a cable can't break in such a way that it lets one frequency through but not the other. I must admit I have little knowledge of how the hardware actually works.
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The way the frequencies work in coax cable mystifies me and Iâ₠¬ÃƒÆ’¢â€žÂ¢ve been on courses with networks guys.
Basically different parts of the cable can carry different frequencies so to answer you question if the out part of the cable is damaged (the shielding) then certain frequencies will stop working.
This is easy to see on dtv where if you connector is loose to the back of the digibox then you'll see some channels disappear. And its always the same channels.