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Self-Install/Coax questions

Discussion in 'DIRECTV Installation/MDU Discussion' started by XRA, Jan 31, 2011.

  1. harsh

    harsh Beware the Attack Basset

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    Here's a link to a link to the spreadsheet.

    http://forums.directv.com/pe/action/forums/displaythread?rootPostID=10771919
     
  2. RobertE

    RobertE New Member

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  3. dsw2112

    dsw2112 Always Searching

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    Generalizations are almost never correct. There are many homes in my area built with SCC as a standard practice.
     
  4. thewallfisher

    thewallfisher AllStar

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    From what I have read and from what I remember from the training videos is that copper clad will be ok if it is RG6. If it is not DirecTV approved cable then it should be tested to verify it will carry the signal.
     
  5. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    "RF wise" CCS & SC are identical.
    "DC wise" they're worlds apart.
    SWiM to PI "should be" SC, but short runs will not be a problem with a voltage drop.

    "Testing" the voltage drop would require doing this under load, so one would need to connect the LNB or SWiM and then use a piece of coax split open to expose the center conductor. Measuring an open coax for a voltage drop, would only show the worst cable and not the true condition as you need to have current across a resistor to have a voltage drop: E=IR [remove I and E is meaningless].

    1Capture.JPG

    So doing the math for 100' and 0.5 amps:
    CCS = 1.85 voltage drop
    SC = 0.77 voltage drop
     
  6. Jodean

    Jodean Icon

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    You are so correct about generalizations.....

    those homes are "upgraded" and it is non-standard to use solid copper. The electrical wholesalers here dont even carry solid copper. The only place ive found it at was the satellite wholesaler.

    I bet i could find your area, pick 10 homes and none of them are SCC
     
  7. ndole

    ndole Problem Solver

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    -Installer gets to house
    -Existing coax in this house is CCS
    -P&P is to replace it with SC
    End of story

    :beatdeadhorse:
     
  8. dsw2112

    dsw2112 Always Searching

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    As mentioned in my original post they were installed as "standard practice." There are 2 new subdivisions near me that do this; they use bundled wiring (2RG6 SCC w/2 CAT5E) in a single jacket; it is not an upgrade.

    In any case this was not the topic of this thread so :backtotop
     
  9. wallfishman

    wallfishman Icon

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    I have NEVER saw a house prewired with solid copper.
     
  10. ndole

    ndole Problem Solver

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    I have SEEN plenty of them.
     
  11. wallfishman

    wallfishman Icon

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    You made a liar outta me that fast, I forget some of that bundled wiring is solid copper. I have done houses prewired with that
     
  12. Mike Bertelson

    Mike Bertelson 6EQUJ5 WOW! Staff Member Super Moderator DBSTalk Club

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    I have two friend who had modular homes built in the last five-ish hears and they both came standard with solid copper throughout. It was a bundled wire system of some sort that phone, data, and coax in every room (including two drops in the kitchen if you can believe it).

    I also work with a guy who just did an addition to his 100 year old home and had the whole thing, addition and house, wired with solid copper (addition was mostly a home theater).

    I can’t remember where, but I read that it's becoming more prevalent in new construction not just for TV but for other applications that require low voltage transmission. Off the top of my head I can’t think of too many uses though. I’ll have to try to find that article again.

    With all this posted, clad far out numbers solid. That doesn't mean there aren't homes that have it.

    For self-install I would use solid. A 500' roll can be had for <$75.

    Mike
     
  13. Jodean

    Jodean Icon

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    1000' of solid is $75 copper clad is $55

    Most homes wont take more than 1000'

    very cheap cop out, but thats what 99% do, there are a few that actually hire a direct contractor to wire the house with cable and cat 5 but thats about slim to none, if a guy does do this the electrician charges the same price anyway even though he doesnt do any rg6, the electrician just dont care and charge anyway.
     
  14. Jodean

    Jodean Icon

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    not going to happen.......no one will tear apart walls so direct can put solid copper in, very very few would allow direct to wrap a new house (less than .5% would allow this)

    :beatdeadhorse:
     
  15. ndole

    ndole Problem Solver

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    That's the policy. CCS is unapproved and will fail a QA. Are you citing any particular study there? I haven't heard of that one :rolleyes:
     
  16. Jodean

    Jodean Icon

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    IF that were the case and everyone followed this policy (never said the policy doesnt exist by the way) there would be what 3 people with directv??
     
  17. ndole

    ndole Problem Solver

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    :scratchin Ok then.
     
  18. mashandhogan

    mashandhogan Legend

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    Is it a "true problem" using CCS?? (What's the big deal with QC, anyway)
     
  19. houskamp

    houskamp Active Member

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    why worry? no quality in anyone's work anymore anyways :rolleyes:
     
  20. dsw2112

    dsw2112 Always Searching

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    "True problem" -- yes, if you're talking about voltage drop and not RF loss.
     

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