[RFI] VDSL (very-high-bit-rate digital subscriber line)

[Christopher Brown]

I am still waiting on getting the house connection refit for dual pair
VDSL2 but I have packed the spec-an and a few radios to work.

>From what I can tell the situation is not much different than
ADSL/ADSL2, there are generally alot more issues with RF getting into
the DSL than the other way around.

I have found plenty of "DSL" noise sources...  Switching power supplies,
and digital noise from the modems themselves...conducted common mode
noise over cabling/etc...

I have never seen RF interferance from the DSL signal itself unless the
cable pairs were so poor/impalanced/other than they were barely
functional for DSL (cable pairs that made a better antenna than signal
carrier).

The DSL signals are comparatively and depend on the twisted pair copper
acting as a transmission line.  All the same stuff that would tend to
make them /leak/ would tend to cause terrible performance issues with
the service as well.


On 4/19/14, 9:35 AM, Dale J. via RFI wrote:
> Anybody have VDSL service to their home?  I did a quick lookup and it
> uses copper to the home at frequency band 25 Khz to 25 Mhz.  My next
> door just signed up for it.  I wonder if that will be my next
> challenge.
> 
> Dale, k9vuj _______________________________________________ RFI
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