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[dazzlew]

Thanks for this...

I'll wait and see if my speed increases over the next few weeks..

[Finguz]

Some users have claimed that is the case. However, we don't yet have like for like stats from the different modems for comparison purposes.

Ah right understood, thanks 

[asbokid]

There's quite a lot of RFI (radio frequency ingress) on your line from the MW broadcast radio transmitters in the area.

If we zoom in on the QLN tone map, and specifically the DMT tones up to 1600kHz (the MW band), we can see what's happening:

If we then plot the affected frequencies on the mediumwaveradio.com map, it illustrates the interference [1]

The interference from the turquoise dot is from the small commercial MW radio station RED (in Colchester). It geolocates you to North Essex.

The London stations are also being picked up nicely by your phone line, as is the BBC World Service transmission at Orfordness on the Suffolk coast (the yellow dot).

There is also measurable RFI higher up the VDSL2 spectrum.

cheers, a

[1] http://www.mediumwaveradio.com/uk.php

[dazzlew]

SR a bit improved tonight so I rebooted and got a higher sync.. 
Hopefully this trend will continue and I may get close to my original speeds.

Code: [Select]

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 26959 Kbps, Downstream rate = 64780 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 64087 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
       VDSL Port Details       Upstream        Downstream
Attainable Net Data Rate:      26959 kbps         64780 kbps
Actual Aggregate Tx Power:        5.3 dBm          12.6 dBm
============================================================================
  VDSL Band Status        U0      U1      U2      U3      D1      D2      D3
  Line Attenuation(dB): 1.1 23.5 35.7   N/A 12.6 30.0 47.3
Signal Attenuation(dB): 1.1 23.3 35.5   N/A 12.6 30.0 47.3
        SNR Margin(dB): 9.9 9.9 9.5   N/A 6.1 6.2 6.2
         TX Power(dBm): -5.0 -20.3 4.9   N/A 8.6 7.3 7.3

[dazzlew]

Interestingly DLM does seem to be following my sync speeds its currently 62.01 against 64.08 sync and fingers x. I've not yet run into any Interleaving Issues.

[dazzlew]

Bit better this morning.

Code: [Select]

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 27011 Kbps, Downstream rate = 65628 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 64469 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
       VDSL Port Details       Upstream        Downstream
Attainable Net Data Rate:      27011 kbps         65628 kbps
Actual Aggregate Tx Power:        5.2 dBm          12.5 dBm
============================================================================
  VDSL Band Status        U0      U1      U2      U3      D1      D2      D3
  Line Attenuation(dB): 1.1 23.5 35.7   N/A 12.6 30.0 47.3
Signal Attenuation(dB): 1.1 23.3 35.5   N/A 12.6 30.0 47.3
        SNR Margin(dB): 9.4 10.0 9.5   N/A 6.3 6.3 6.4
         TX Power(dBm): -4.5 -20.0 4.7   N/A 8.6 7.4 7.2
#


[dazzlew]

Sunday sync.. better.

Code: [Select]

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 24610 Kbps, Downstream rate = 66400 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 66168 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
       VDSL Port Details       Upstream        Downstream
Attainable Net Data Rate:      24610 kbps         66400 kbps
Actual Aggregate Tx Power:        6.8 dBm          12.6 dBm
============================================================================
  VDSL Band Status        U0      U1      U2      U3      D1      D2      D3
  Line Attenuation(dB): 1.1 23.4 35.6   N/A 12.6 29.9 47.2
Signal Attenuation(dB): 1.1 23.2 35.4   N/A 12.6 29.9 47.2
        SNR Margin(dB): 9.0 9.5 9.1   N/A 6.0 6.1 6.1
         TX Power(dBm): -3.9 -19.7 6.4   N/A 8.7 7.2 7.4