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Standard User FarmerGilesUK
(regular) Tue 19-Apr-11 16:33:24
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Noise margin dropping dramatically in this hot weather


[link to this post]
 
My SNR margin seems to drop dramatically when its warm. Today, hottest day here so far this year, SNR margin dropped from 7.5dB at 07:00hrs to 2.5dB at 15:00hrs. Router (Speedtouch) stayed in sync but notched up 1.5million FECs.

BTW this is 7km of overhead wire all the way to the exchange and seems to be a pattern in this warm(er) weather.

Is this typical or does it indicate a poor connection somewhere?

Regards
Administrator MrSaffron
(staff) Tue 19-Apr-11 16:37:55
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Re: Noise margin dropping dramatically in this hot weather


[re: FarmerGilesUK] [link to this post]
 
Not typical, maybe someone has an electrically noise aircon unit switched on, or overhead cable expanding and now in contact with trees that are affecting signal

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User FarmerGilesUK
(regular) Tue 19-Apr-11 17:08:12
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Re: Noise margin dropping dramatically in this hot weather


[re: MrSaffron] [link to this post]
 
We had a shedload of problems with trees last year. You could be on to something there.

Latest stats

Uptime: 8 days, 4:20:09
Modulation: G.992.1 Annex A
Bandwidth (Up/Down) [kbps/kbps]: 448 / 2,080
Data Transferred (Sent/Received) [MB/MB]: 168.21 / 941.14
Output Power (Up/Down) [dBm]: 11.5 / 17.0
Line Attenuation (Up/Down) [dB]: 31.5 / 63.5
SN Margin (Up/Down) [dB]: 6.0 / 4.0
Vendor ID (Local/Remote): TMMB / 
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 94,694 / 0
FEC Errors (Up/Down): 2,658 / 3,690,794
CRC Errors (Up/Down): 404 / 113,400
HEC Errors (Up/Down): 200 / 84,348

Rgds


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