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Genie "The Good Stuff" Discussion

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by Stuart Sweet, Oct 12, 2012.

  1. jangell2

    jangell2 Godfather

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    The rush was that I wanted to get back there today and hookup my AppleTV and the new coax. It is a freaking pain-in-the-ass to get back there and I won't trouble you with the details. I ordered the cable from Amazon on my phone while I was out shopping. Should have it tomorrow.

    My question above about needing an antenna has been answered. I found an AM antenna in my box o' electronic junk and now RF works.

    As to the difference between digital and non-digital coax, the digital ones have the phono style connectors for one. Not sure about other differences.
     
  2. RunnerFL

    RunnerFL Well-Known Member

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    Coaxial audio is always digital.
     
  3. Laxguy

    Laxguy Honi Soit Qui Mal Y Pense.

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    Winters,...
    Thanks, but I was asking about the cable itself: Is the word "digital" added to make it sound more modern (sorta like a "digital TV stand") or are they in fact different from any other coax in the cabling?
     
  4. Rich

    Rich DBSTalk Club DBSTalk Club

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    Interesting question you pose. Before things changed, you could use coax for analog signals from your TV antenna. We're using the same coax (OK, different sizes) for our digital signals.

    Rich
     
  5. RunnerFL

    RunnerFL Well-Known Member

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    Still not sure I get you here... There's only one kind of Coax Audio and that's digital. Are you asking if there is a difference between a coax audio cable and RG6 coax? Yes, definitely different.
     
  6. Rich

    Rich DBSTalk Club DBSTalk Club

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    I actually tried to use a normal RG6 coax on my AVR and it didn't work. What do they put in the audio coax cables to make them different?

    I remember MI (I think that's the right name, not sure) coax that we used in our powerhouse for something. When stripped, it looked just like any other coax but with a larger center wire. That stuff was old, really old. Like 1936 old.

    Rich
     
  7. TMan

    TMan Legend

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    One could make a digital audio cable from RG6 coax, RG59 coax, or I imagine others. Are the cheap cables they sometimes include in, for example, a basic DVD player even technically coax at all?

    I have made cables myself with bulk RG6 cable, some RCA/phono connectors, and a couple of hand tools. One carries digital audio from my DVD player to my AV receiver. Another carries the ".1" preamp signal from that receiver to my subwoofer. Another is mostly in the wall and carries composite video to my ceiling projector. I also have a bundled cable that consists of three RG6 cables in one sheath to carry component video to the projector.

    For audio-video interconnects, I imagine the center conductor being copper-clad steel or solid copper doesn't matter too much. For carrying signals from a satellite dish to the satellite boxes in the house, or for the cable company service drop, the conductor would matter.

    RG59 is mostly considered inadequate for wiring a home for cable/satellite distribution these days, but you could still make a-v interconnects with it. The Monoprice link I posted above has both RG6- and RG59-based cables.
     
  8. RunnerFL

    RunnerFL Well-Known Member

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    Well I think the confusion lies in the assumption that solid core coax (RG-58, RG-59, RG-6, etc) is the only "coax" there is. Any cable with two "axis", aka conductors, is coaxial. Technically your standard L/R (White/Red) RCA cables are coax as well. You just don't see people calling them that. That's why I do my best to call it RG-6 instead of "coax".

    Coaxial cable has a wire conductor in the centre (solid or stranded) a circumferential outer conductor and an insulating medium called the dielectric separating these two conductors.
     
  9. RunnerFL

    RunnerFL Well-Known Member

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    If they weren't coaxial, 2 conductor, they wouldn't work.
     
  10. Laxguy

    Laxguy Honi Soit Qui Mal Y Pense.

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    Winters,...
    Thanks, Gents and Ladies.

    I am clear now on the nomenclature, but not clear on why a well made RG6 cable with RCA style plugs wouldn't work as a "digital audio cable". Or, in fact, why an old "analog" RCA cable wouldn't work for short runs of digital audio if the quality of the wires was good (and no big outside interference, etc.)
     
  11. Rich

    Rich DBSTalk Club DBSTalk Club

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    I know all that!

    No electrician worth his salt would confuse RCA cables with what we think of as coax. Still, that didn't stop me from wondering if the digital audio coax doesn't have two conductors instead of one. What is the difference between audio coax and RG6? I've never stripped an audio coax and I really don't know the difference.

    Rich
     
  12. Rich

    Rich DBSTalk Club DBSTalk Club

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    I dunno either, but I had a hell of a time putting (jamming, cramming, trimming, squeezing) that cable into an RCA plug. One of my "unlazy" days. And after all that, it didn't work. I think I also tried a regular RCA cable too and that didn't work either.

    Rich
     
  13. RunnerFL

    RunnerFL Well-Known Member

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    I'm not sure about an RG-6 cable but an old, as you call it, "analog RCA cable" should work as a temporary measure. It's just the quality of it isn't going to be as good as a cable made for a S/PDIF signal.
     
  14. RunnerFL

    RunnerFL Well-Known Member

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    Maybe not, but they are technically both "coax".

    You didn't read what I posted I guess.. The DO have two conductors. If they didn't have two conductors they wouldn't be "coax". Co = 2 axial = axis/conductor

    Again, coax isn't just the solid core RG cables.

    One is solid core the other is stranded.
     
  15. RunnerFL

    RunnerFL Well-Known Member

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  16. Laxguy

    Laxguy Honi Soit Qui Mal Y Pense.

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    Winters,...
    Absolutely. In fact, a non-coax cable could work there, but would be the worst of the temporary connections.

    I didn't think about it until you posted it that RCA cables were coax. At least the cheapest looking one I had is when I axed it for the sake of science.....:p
     
  17. Rich

    Rich DBSTalk Club DBSTalk Club

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    Wasn't disagreeing, just an opinion.


    I wasn't clear. I thought there might be two solid conductors in the audio cable separated by the dielectric.

    What's the difference? I know from an electrician's POV, 12AWG is the same, stranded or solid.

    Rich
     
  18. RunnerFL

    RunnerFL Well-Known Member

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    Any 2 conductor wire should work but how good it sounds it what matters most. :lol:
     
  19. RunnerFL

    RunnerFL Well-Known Member

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    I'm searching for specs but from what I've been able to gather (without chopping up my S/PDIF cables) is that they have a 7 conductor stranded center core. Other than that they appear to be the same as your "standard" RG6 as far as the braided outter core.

    They are both listed as "75 ohm coax".

    UPDATE: What's the difference? Apparently the type of coax used for connecting satellite and antenna feeds are "a completely different kettle of fish". Does that explain it enough? :lol:

    http://www.dummies.com/how-to/content/digital-audio-connections-coaxial-and-optical.html
     
  20. inkahauts

    inkahauts Well-Known Member

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    I find this somewhat odd. I have never put RCA connectors on rg6 sat coax and tried it for digital coax connections, but I would think it should work, for that works fine for regular composite video from what I have seen, and composite video cables work fine for digital coax cables, which I have tried.
     

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