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Hi all,
Vanilla are planning an update to the site on April 24th (next Wednesday). It is a major PHP8 update which is expected to boost performance across the site. The site will be down from 7pm and it is expected to take about an hour to complete. We appreciate your patience during the update.
Thanks all.

multiswitch

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Comments

  • #32
    teednab-el
    Registered Users Posts: 2,971 ✭✭✭teednab-el


    FRIENDO wrote: »
    teednab-el wrote: »
    Anyway of knowing beforehand?

    Yes

    If you could inspect the cable in the attic, looking for any serial markings, example RG-6, many different types and post the serial type.

    You could also try connecting the satellite STB to the wall socket and if you have a satellite meter connect it in the attic, power on the satellite STB and you may get an audio signal on your meter, if you get an audio signal the cable may be ok.

    Will have a look there in a while and will post back.


  • #33
    Ronnie Raygun
    Closed Accounts Posts: 1,351 ✭✭✭Ronnie Raygun


    FRIENDO wrote: »
    You could also try connecting the satellite STB to the wall socket and if you have a satellite meter connect it in the attic, power on the satellite STB and you may get an audio signal on your meter, if you get an audio signal the cable may be ok.

    :confused: How does this work (& what does it prove)?


  • #34
    watty
    Registered Users Posts: 32,417 ✭✭✭✭watty


    It proves only the cable passes DC if he is talking about the simple setbox powered level meters.


  • #35
    FRIENDO
    Registered Users Posts: 1,390 ✭✭✭FRIENDO


    Ronnie Raygun wrote: »
    :confused: How does this work (& what does it prove)?

    As watty has stated it proves only the cable passes DC.
    If it got no audio signal, I would wonder if the cable was improperly installed or damaged.

    http://en.wikipedia.org/wiki/Coaxial_cable


  • #36
    Ronnie Raygun
    Closed Accounts Posts: 1,351 ✭✭✭Ronnie Raygun


    Do you even know what DC is & how it relates to a satellite installation?


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  • #37
    watty
    Registered Users Posts: 32,417 ✭✭✭✭watty


    Door-bell wire will pass the DC test. But it won't work for Satellite.

    Damaged coax that has severe problems for TV or Sat (corroded, crushed, kink, slit cut in screen/braid) will pass DC test and often simple level tests (cheap bargraph or needle "level" only meters).

    Also poorly screened cable will pass any signal quality tests if there is no interference. Poor screening results in interference FROM the LNB over 110MHz to 2400MHz and interference on particular channels from a wide variety of devices.

    The ONLY way to know outside of a test lab is the Model number on the cable if there is one. RG6 is only PART of a model number, the digits after the 6- are the specific model that decide if it's a 600MHz or 2GHz cable and type of screening. RG6 on it's own means nothing really.

    If the cable has no model number printed or doesn't have dense braid you can't see through or doesn't have foil too, then it's not good cable. Really UHF TV needs the same grade as Satellite IF from point of view of screening.


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