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SNR Margin and the weather
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- Re: SNR Margin and the weather
SNR Margin and the weather
12-09-2011 8:19 AM
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My SNR margin was reset last Tuesday by Adam (many thanks) to allow me to get back to a downstream synch of 8128 - everything was good for ~ 4 days with the SNR holding at 7.3 +/- 0.3 dB as measured by Routerstats.
However yesterday it all went to pot ,firstly during thundery weather (understandable!) and then majorly overnight in the high winds when I experienced at least two reconnections as the SNRM danced around and dropped as low as 1 db.
It has now appears to have settled down @ 8.3 SNRM with a synch of 8032
I don't have any overhead lines between my house and the exchange so why did I see so much noise on the line overnight (compared with previous nights)?
Surely underground lines shouldn't be affected by wind (flooding I can understand!!)
However yesterday it all went to pot ,firstly during thundery weather (understandable!) and then majorly overnight in the high winds when I experienced at least two reconnections as the SNRM danced around and dropped as low as 1 db.
It has now appears to have settled down @ 8.3 SNRM with a synch of 8032
I don't have any overhead lines between my house and the exchange so why did I see so much noise on the line overnight (compared with previous nights)?
Surely underground lines shouldn't be affected by wind (flooding I can understand!!)
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Re: SNR Margin and the weather
13-09-2011 7:46 AM
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Further to the above, my Routerstats graph of downstream SNRM appears to be an almost perfect record of the strength/blusteriness of the wind since Sunday afternoon!
I've walked my estate and there are no overhead lines, altho' there are in older parts of the "village". Is it possible /likely that the "green" cab. serving my phone line would be connected back to the exchange by overhead line,or are these always connected by underground cable?
I've walked my estate and there are no overhead lines, altho' there are in older parts of the "village". Is it possible /likely that the "green" cab. serving my phone line would be connected back to the exchange by overhead line,or are these always connected by underground cable?
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Re: SNR Margin and the weather
13-09-2011 8:18 AM
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Hi davidj60,
That's always a possibility. It could also be that the wind is forcing water into a joint somewhere. A tough one to diagnose really.
Jojo
Quote Is it possible /likely that the "green" cab. serving my phone line would be connected back to the exchange by overhead line
That's always a possibility. It could also be that the wind is forcing water into a joint somewhere. A tough one to diagnose really.
Jojo
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- Re: SNR Margin and the weather