Rein and Shine

Discussion in 'Broadband' started by Graham., Mar 16, 2015.

  1. Graham.

    Graham. Guest

    An item on You and Yours on Radio 4
    http://www.bbc.co.uk/programmes/b055fzm0


    Although the accronyms were not explained, I knew REIN was
    Repetitive Electrical Impulse Noise.
    But SHINE?
    Google tells me it's
    Single Isolated Impulse Noise
    SHINE, yeh right.

    The conclusion was that interference to xDSL can be very difficult to
    trace, yes I agree with that,
    and trust your ISP to get it sorted out? Maybe not.

    Oh and far too much significance atributed to 612KHz
     
    Graham., Mar 16, 2015
    #1
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  2. Graham.

    Martin Brown Guest

    It was pathetic that they didn't define their use of these ETLAs.

    And I can imagine that REIN is capable of really messing up an ADSL data
    link and should be relatively easy to pin down with an AM radio.
    Single events aren't likely to cause such major trouble. It might force
    a drop and resync but the speed should be OK in between events unless it
    happens often enough to result in the spiral of death for sync speed.
    You just need a quiet spot with no stations in the few hundred kHz band
    to listen out for local RF interference. 612kHz is one such radio quiet
    sweet spot. You just want something well away from other broadcasts.

    I wasn't impressed with the minister for clueless incompetence saying
    that the roll out of fibre would fix it - since major problems occur in
    rural locations with long overhead copper/aluminium lines with the
    likes of cattle fences arcing and sparking to ground or to beasts.

    I'm not that convinced that street lamps are a major problem apart from
    when they are on their last legs and essentially spark transmitters.

    I am genuinely surprised that bad LED PSUs can originate serious
    interference in this band. Second time it has come up.
     
    Martin Brown, Mar 16, 2015
    #2
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  3. Graham.

    Java Jive Guest

    Perhaps the acronym was originally SIIN, and the person who first
    called it SHINE was a Gaelic speaker?

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    Java Jive, Mar 18, 2015
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  4. Graham.

    Davey Guest

    Does this help?
    https://support.zen.co.uk/kb/Knowledgebase/Broadband-Understanding-REIN-and-SHINE
     
    Davey, Mar 18, 2015
    #4
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