A Broadband and ADSL forum. BroadbanterBanter

Welcome to BroadbanterBanter.

You are currently viewing as a guest which gives you limited access to view most discussions and other FREE features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today.

Go Back   Home » BroadbanterBanter forum » Newsgroup Discussions » uk.telecom.broadband (UK broadband)
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

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.

erratic attenuation readings!



 
 
Thread Tools Display Modes
  #1  
Old June 4th 06, 09:39 AM posted to uk.telecom.broadband
Tony Wright
external usenet poster
 
Posts: 2
Default erratic attenuation readings!

I have had problems with line speeds since conversion to ADSL max the BT
engineer said there was "a massive loop" on my line and he put it down to
the Cordless digital phone i was using as being faulty.

But here are 2 readings from the same set up taken within minutes of each
other with absulutly nothing changed except a modem reset.

My modem reports:

Statistics Downstream Upstream
Line Rate 7712 Kbps 448 Kbps
Noise Margin 9.3 dB 17.0 dB
Line Attenuation 47.0 dB 24.0 dB
Output Power 19.8 dBm 12.1 dBm


Statistics Downstream Upstream
Line Rate 7648 Kbps 448 Kbps
Noise Margin 9.2 dB 17.0 dB
Line Attenuation 15.5 dB 24.0 dB
Output Power 19.8 dBm 11.9 dBm

Could this be a crosstalk issue? any other ideas as to whats happening?

Regards . Tony W



  #2  
Old June 4th 06, 10:37 AM posted to uk.telecom.broadband
PhilT
external usenet poster
 
Posts: 391
Default erratic attenuation readings!


Tony Wright wrote:

But here are 2 readings from the same set up taken within minutes of each
other with absulutly nothing changed except a modem reset.

My modem reports:

Statistics Downstream Upstream
Line Rate 7712 Kbps 448 Kbps
Noise Margin 9.3 dB 17.0 dB
Line Attenuation 47.0 dB 24.0 dB
Output Power 19.8 dBm 12.1 dBm
Statistics Downstream Upstream
Line Rate 7648 Kbps 448 Kbps
Noise Margin 9.2 dB 17.0 dB
Line Attenuation 15.5 dB 24.0 dB
Output Power 19.8 dBm 11.9 dBm


its misreporting the attenuation. The line speed is essentially the
same at the same margin with the same output power therefore the
attenuation is actually the same. No actual problem, just a bad number.

Have seen this before - one guy got his BT checker entry changed to
allow 2M services based on a 15.5 dB that one router gave him when
others said over 40.

Phil

  #3  
Old June 4th 06, 10:59 AM posted to uk.telecom.broadband
Tony Wright
external usenet poster
 
Posts: 2
Default erratic attenuation readings!

Thanks Phill,

Appreciated.


"PhilT" wrote in message
oups.com...

Tony Wright wrote:

But here are 2 readings from the same set up taken within minutes of each
other with absulutly nothing changed except a modem reset.

My modem reports:

Statistics Downstream Upstream
Line Rate 7712 Kbps 448 Kbps
Noise Margin 9.3 dB 17.0 dB
Line Attenuation 47.0 dB 24.0 dB
Output Power 19.8 dBm 12.1 dBm
Statistics Downstream Upstream
Line Rate 7648 Kbps 448 Kbps
Noise Margin 9.2 dB 17.0 dB
Line Attenuation 15.5 dB 24.0 dB
Output Power 19.8 dBm 11.9 dBm


its misreporting the attenuation. The line speed is essentially the
same at the same margin with the same output power therefore the
attenuation is actually the same. No actual problem, just a bad number.

Have seen this before - one guy got his BT checker entry changed to
allow 2M services based on a 15.5 dB that one router gave him when
others said over 40.

Phil



 




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Erratic network David W Allen uk.comp.home-networking (UK home networking) 2 February 5th 06 05:03 AM
erratic signal geepeetee uk.comp.home-networking (UK home networking) 4 April 16th 05 12:55 PM
differing db readings Beck uk.telecom.broadband (UK broadband) 28 February 25th 05 09:51 AM
Slow (and erratic) downloading. DB. uk.telecom.broadband (UK broadband) 5 January 16th 05 01:03 PM
impressively erratic performance over BT adsl Mike uk.telecom.broadband (UK broadband) 9 October 22nd 04 10:54 PM


All times are GMT +1. The time now is 03:32 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.Content Relevant URLs by vBSEO 2.4.0
Copyright 2004-2019 BroadbanterBanter.
The comments are property of their posters.