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Topic # 151203 17-Aug-2014 17:44
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I've been told by Vodafone that my property has induction coils so we can't get vdsl. Does anybody know anything about these things and can they really inhibit my broadband reception?

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  Reply # 1110002 17-Aug-2014 17:50
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"load coils"
You probably cant get ADSL with those either.




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  Reply # 1110013 17-Aug-2014 18:21
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Hi, are they on your property or on the line between the exchange/cabinet and your property. They were only ever deployed on long lines to create lumped low pass filters that assisted with long line losses, but these are lines in the >5km length, they have not been commonly used in urban areas for years, that said I have found them on the line of houses close to MF/AM transmitters (Titahi Bay or Henderson for example), I simply remove them, the DSL filter will keep the Tx's out of the voice side of the line.

Cyril

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  Reply # 1110036 17-Aug-2014 19:00
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Like Cyril said Loading coils were installed on cables as low pass filters to add in the transmision of voice frequencys on long lines (+5km from equipment), DSL services are retarded by them and in most cases DSL will not get though at all. With the advent of cabinets with remote DSL& Voice systems, loading coils are progressively being removed off the distribution cables when it becomes nessesary and/or appropriate to do so ( some can not be (economical removed) due to ongoing requirements of the cables performance).
They were also deployed on cables that were used to interconnect exchanges and many of these cables have now been converted to being used for more local use, with the more common use of Fibre for exchange interconnect,  their loading coils are also being removed where appropriate.

Im sure than 'Loading coil' removal can be investigated, for cable groaming for DSL, by Chorus if an ISP requests it


If VF were talking about noise chokes (which are again another form of inductive coils) these are generaly deployed in Exchs & Cabinets for the supression of 'noise' on particular cables but theses are deployed after the voice equipment and before the DSLAM so shouldnt effect xDSL services

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  Reply # 1110081 17-Aug-2014 20:05
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I you have loading coils on your line - expected them to never be removed as chorus doesnt pay to have them removed anymore due to costs

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  Reply # 1110339 18-Aug-2014 11:15

Chorus can provide a quote for the removal of loading coils if requested, but I would not expect it to be cheap or terribly viable from an individual's perspective for the reasons noted above.




Product Manager @ PB Tech

https://pbtech.co.nz/smartphones


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