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Author Topic: MDWS - Can someone in the know check my connection please?  (Read 1424 times)

AngelRex

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MDWS - Can someone in the know check my connection please?
« on: August 21, 2017, 02:09:41 PM »

I've recently started MDWS logging again, run off my laptop.  I noticed (if you go to Angel-Rex and select SNRm 5 days worth) that a pattern has emerged - my SNR dips from 6.3 to 5.8 each night around 9.15pm

Any suggestions what could cause this?  I've looked at boiler timer and many other things - its not causing an issue, but it's interesting to see a pattern and if there is something electrical causing the 'blip'?

Thanks in advance.

Rex
« Last Edit: August 23, 2017, 12:46:49 PM by AngelRex »
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Ronski

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Re: MDWS - Can you check my SNR and suggest a cause?
« Reply #1 on: August 21, 2017, 03:44:41 PM »

It's a pretty common occurrence,  you'll see iit on others as well.  Street lighting could be one cause.
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j0hn

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Re: MDWS - Can you check my SNR and suggest a cause?
« Reply #2 on: August 21, 2017, 03:57:58 PM »

Like Ronski days that's very common. There's not likely to an electrical appliance causing it. Some lines move by over 1dB in a similar pattern to yours.
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burakkucat

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Re: MDWS - Can you check my SNR and suggest a cause?
« Reply #3 on: August 21, 2017, 04:04:24 PM »

I'll suggest RFI, as a result of increased propagation through the ionosphere during the hours of darkness.

N*Star will be able to tell you about Radio China International (and Radio Romania) from first hand experience of their transmissions!
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AngelRex

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Re: MDWS - Can you check my SNR and suggest a cause?
« Reply #4 on: August 21, 2017, 04:34:59 PM »

I thought it might be something similar, it's indeed getting dark around then.

I wasn't sure though, so best to check. It's not causing issues ATM, just wanted to check in case it looks suspect.

Appreciate the input :)
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AngelRex

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Re: MDWS - Line just spiked and massive drop in attain?
« Reply #5 on: August 23, 2017, 11:51:58 AM »

OK, my line just took a dive 20 mins ago and resynced at a much lower sync speed (was 42mb attain and now its 38mb).  For the last 2 years my attain has been 42-44mb and always synced at a solid 40mb down 6mb up with 8ms ping.  A big storm in May kinda killed this and I seemed to have been capped at 35mb :/


SNR on the DS is the same so i'm unsure why. the upstream SNR has gone up from 3db so I guess that was a bug? 

It looks like there was a spike in errors, although nothing could have caused this - could this be DLM?

Could someone check over my stats and errors over the last few days and assist? Crosstalk? I've no idea how to check.

Many thanks again.
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