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|uk.telecom.broadband (UK broadband) (uk.telecom.broadband) Discussion of broadband services, technology and equipment as provided in the UK. Discussions of specific services based on ADSL, cable modems or other broadband technology are also on-topic. Advertising is not allowed.|
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Is this line noisy?
On 2005-09-27 15:52:53 +0100, Brian Morrison said:
My advice to the OP is correct though; he should be seeing a much
better SNR than he describes on a 50dB loss line, it should be a
minimum of 20dB, and more like 25dB. Clearly there is some interference
and I suspect it could be local and coming in through unbalanced ring
wiring on extensions.
There are no other sockets connected to this line & I tested today with
nothing but a new Voyager 105 connected to a new splitter. The line was
installed two or three months ago after previous support calls failed
to resolve similar problems, so is used only for fax & broadband - I
think there may be extensions on the other line, but not on this one.
When I tested today I think I saw an SNR of 15dB - I wasn't aware of
it's significance, so can't be sure, and can't say how much it varied -
but surely not 20dB or 25dB as you describe.
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