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Rain and Broadband

N/A

Rain and Broadband

Could someone technical explain the link between rain/bad weather and poor broadband speeds. Cheers
17 REPLIES
Plusnet Help Team
Plusnet Help Team
Posts: 17,624
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Registered: 05-04-2007

Rain and Broadband

This blog was posted because of the recent problems.

These conditions can have severe effects on the noise of a signal and have a significant attenuative effect on a broadcast signal.

An example, is when your sky signal goes dead during a heavy storm, admittedly the signal is much higher in frequency and lower in power but you get the idea.
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Help Team
Community Veteran
Posts: 38,213
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Registered: 15-06-2007

Rain and Broadband

Link doesn't work
Plusnet Help Team
Plusnet Help Team
Posts: 17,624
Thanks: 610
Fixes: 158
Registered: 05-04-2007

Rain and Broadband

Works for me, what does it do for you?

http://community.plus.net/comms/2007/06/25/it-doesnt-rain-but-it-pours/
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Help Team
Community Veteran
Posts: 38,213
Thanks: 909
Fixes: 54
Registered: 15-06-2007

Rain and Broadband

I get this response
Quote

Uh oh!

Sorry, we couldn't find the page you requested. Please use the search form to find what you're looking for.
Is this the link http://community.plus.net/csc/2007/06/25/its-raining-its-pouring/
Plusnet Help Team
Plusnet Help Team
Posts: 17,624
Thanks: 610
Fixes: 158
Registered: 05-04-2007

Rain and Broadband

http://community.plus.net/comms/2007/06/25/it-doesnt-rain-but-it-pours/

Try that link again please, it looks like James had pressed a random button when he wrote it Cheesy
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Help Team
Community Veteran
Posts: 38,213
Thanks: 909
Fixes: 54
Registered: 15-06-2007

Rain and Broadband

Yup - works now Cheesy
James
Grafter
Posts: 21,036
Registered: 04-04-2007

Rain and Broadband

Apparently guilty as charged although I don't know what I did!
N/A

Rain and Broadband

thanks , i get rain interfering with transmissions but how does rain (obviously excluding submerged equipment) make broadband slow.
Community Veteran
Posts: 38,213
Thanks: 909
Fixes: 54
Registered: 15-06-2007

Rain and Broadband

It gets into exposed joints and reduces the noise margin and increases the error rate.
I am just waiting for everything to dry out and get back to normal.
Upstream speed is presently 224kbps with a noise margin of 6dB (normal when it's dry is 448kbps at 20dB)
Plusnet Help Team
Plusnet Help Team
Posts: 17,624
Thanks: 610
Fixes: 158
Registered: 05-04-2007

Rain and Broadband

As holtlane says the moisture can get into joints and cause problems such as speed reductions or intermittent connections due to the change in noise margin.
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Help Team
p_w_d_stone
Grafter
Posts: 315
Registered: 05-04-2007

Rain and Broadband

Submerged equipment is a major factor, but AFAIK it's mostly down to the water causing small shorts and/or cross-connections on the copper wires that carry the broadband to your house. I've heard of a number of cases where users are able to hear hissing or neighbour's conversations, but only when it's wet. These faults can often be difficult to prove as inevitably the BT engineer arrives when it's dry and the fault isn't present.

If you dial 17070 option 2 on your phone then you'll get a quiet line test - this should be absolutely silent, without hisses, crackles, beeps, or your neighbours. Anything you can hear during that test will almost certainly adversely affect your broadband connection.

Another possible factor is the electromagnetic interference from storms increasing noise on the line.

Lastly, and completely non technical, if it's bad weather more people work from home or stay in of an evening- meaning VPN and web traffic is increased- and leaving less capacity to go around.
N/A

Rain and Broadband

I have been checking my adsl to see how the weather effects it as you can see there is nothing that jumps out at you and so far I would say it makes no difference to me at least. More than rain temp could be a factor as the wires expand contract which may have a effect

22/05/07 5056 ds 8
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pacem
Grafter
Posts: 175
Registered: 07-09-2007

Rain and Broadband

I only have problems after rain. The trouble is that even a daily reading of rain is not enough:

Last weekend (June 16th) there was a downpour that upset my ADSL.
http://portal.plus.net/central/forums/posting.php?mode=reply&t=57038

The trouble is the rain reading is at 9am so errors can appear before the reading.
Also sudden rain for me is worse than constant rain. I know that most of the 12mm recorded on Thurday morning fell on Wednesday lunch time.
(Note the router can get stuck after a low upstream SNR and I was on holiday from Saturday so those readings are un-qualified.

Curiously after the rain this week ...
http://ccgi.pacem.plus.com/router.php?days=7&day=27&month=6
...I've not had a problem because although Monday and Tuesday had the same amount of rain as the previous example, the rain was constant throught the day.

If your upstream SNR and sync drop (as mine do) I think it would suggest the problem is at the exchange end as the weak received signal would be even weaker with comparibly more interference, whereas the signal being sent would be relatively stronger than any interference and hence not affected.

Paul.<><

PS. Pages posted require SVG which is a plugin from adobe or it's built-in to FireFox.
dennisb66
Grafter
Posts: 371
Registered: 01-08-2007

Rain and Broadband

Thanks for that BT test number Peter,I gave it a try and was pleased to hear absolutely nothing.Will let all my friends know about it. :lol: