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.
|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.|
| ||Thread Tools||Display Modes|
Noise, attenuation and CRC figures?
"Nigel M" wrote in message
Finally got broadband yesterday, and I've been having a look at my
router's logs. Three things I noticed, as follows:
Operation Data Upstream Downstream
Noise Margin 31 dB 31 dB
Attenuation 28 dB 25 dB
Indicator Name Near End Indicator Far End Indicator
Fast Path CRC Error 7 0
Router is 3Com 3CRWDR100A-72, ISP is Pipex.
Are the noise and attenuation figures about right?
What is the Fast Path CRC Error? Anything to worry about?
Can anyone suggest a resource about this sort of data?
"Time may be a great healer,
but he's a lousy beautician"
I don't know about the CRC figures but the noise margin must be more than
about 10 or 12dB, in fact, the higher the better, so you're fine with those
figures. The attenuation has to be no more than about 60dB for the 1Mb
service and no more than 41dB for the 2Mb, so you'll be OK for the faster
services as they come along.
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Max speed with these figures?||Tiny Tim||uk.telecom.broadband (UK broadband)||10||February 25th 05 10:24 PM|
|Typical download figures||JPG||uk.telecom.broadband (UK broadband)||3||February 24th 05 01:58 AM|
|Reducing noise/attenuation on adsl in the home||JT1uk||uk.telecom.broadband (UK broadband)||3||November 24th 04 01:53 PM|
|Noise and attenuation||Geoff Venn||uk.telecom.broadband (UK broadband)||12||September 27th 04 11:14 AM|
|ADSL line mode is now T1.413 and attenuation/noise changed||DMG||uk.telecom.broadband (UK broadband)||0||September 13th 04 05:30 PM|