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Poor noise stability since ADSL2+
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- Re: Poor noise stability since ADSL2+
Poor noise stability since ADSL2+
06-08-2012 8:05 AM
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My noise margin (SNR) used to be rock solid at 6dB ± 0.1 dB but since moving to ADSL2+ it seems to be all over the place, drifting up and down from hour to hour and with the occasional step function change (whilst the connection is maintained) - see attached chart. Either the new equipment is a bit iffy or something is going on at higher frequencies (i.e. those only used by ADSL2+). Is there anything I can do to get to the bottom of this and achieve greater stability?
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Re: Poor noise stability since ADSL2+
06-08-2012 8:23 AM
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Oh, well I tracked down that change to my wife switching on her computer - switching it off again produced the step up. So I guess part of the problem is mains-borne interference.
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- Re: Poor noise stability since ADSL2+