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Author Topic: Advice on poor quality line  (Read 45281 times)

burakkucat

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Re: Advice on poor quality line
« Reply #270 on: July 28, 2016, 09:41:41 PM »

Another thing to consider is whether that pole-mounted electricity transformer is starting to show its age . . . arcing between the turns of one winding, when the load is increased.  :-\

Perhaps you could check for wideband spurious RF emanations in the vicinity of the pole with the aid of a de-tuned radio, checking in the 300 - 650 kHz frequency range.
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MaximusPrime

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Re: Advice on poor quality line
« Reply #271 on: July 28, 2016, 09:43:45 PM »

@burakkucat,

yeah it's old, the cables needed to be covered with a plastic coating last Christmas because they started sagging & touching blowing the fuse several times
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burakkucat

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Re: Advice on poor quality line
« Reply #272 on: July 28, 2016, 09:55:00 PM »

Hmm . . . That is the sort of occurrence about which I was thinking. So it appears that the LV mains infrastructure is somewhat degraded due to age and it could be protesting when the load is suddenly increased.

We do have some members who are experienced in the field of mains electricity distribution (and transmission). Perhaps others may have some suggestions as to what to check, etc.
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NewtronStar

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Re: Advice on poor quality line
« Reply #273 on: July 28, 2016, 10:02:27 PM »

@NewtronStar,

cheers for the info, would a Uninterrupted Power Supply (UPS) work too?

If you have one then try it
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MaximusPrime

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Re: Advice on poor quality line
« Reply #274 on: July 28, 2016, 10:10:50 PM »

@NewtronStar,

I was thinking of getting 1 in case my electricity went off so I'd still have internet access.

@burakkucat,

Is the problem literally the quality of the electricity to the router's power plug?
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NewtronStar

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Re: Advice on poor quality line
« Reply #275 on: July 28, 2016, 10:23:19 PM »

The only way to be sure is to isolate the mains to the modem there are two ways you can do this.
A. Use a Car Battery 12v DC and get the polarity right + -  of course to modem
B. use a Car Jump starter pack that has a 12v DC output socket and connect to the modem
« Last Edit: July 28, 2016, 10:33:37 PM by NewtronStar »
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MaximusPrime

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Re: Advice on poor quality line
« Reply #276 on: July 28, 2016, 10:34:55 PM »

@NewtronStar,

would a car jump starter pack not be the same as a UPS?
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burakkucat

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Re: Advice on poor quality line
« Reply #277 on: July 28, 2016, 10:42:41 PM »

Is the problem literally the quality of the electricity to the router's power plug?

At the moment we really don't know. So far, everything I have mentioned could be a possibility. Now is the time to experiment, one step at a time, and then to analyse the results so obtained.

N*Star has suggested temporarily isolating the CPE from the mains electricity supply. Whilst in that state you could then check for the effect of (1) turning on the oven (2) using the treadmill.
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MaximusPrime

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Re: Advice on poor quality line
« Reply #278 on: July 28, 2016, 10:54:46 PM »

@burakkucat,

I'll monitor my graphs for the mean time. I don't have a car charger with a plug tho.

Spent a lot of £ already on my internet so maxed out for the minute.

I'll be investigating an UPS or power conditioner in future probably
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NewtronStar

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Re: Advice on poor quality line
« Reply #279 on: July 28, 2016, 11:17:06 PM »

The car jump starter pack will need an adapter as seen in photo always double check the polarity with volt meter to make sure the polarity is the same as the modems PSU.

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MaximusPrime

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Re: Advice on poor quality line
« Reply #280 on: July 28, 2016, 11:43:20 PM »

@NewtronStar,

I wouldn't attempt it tbh, I don't know enough about electronics so would be too concerned about frying my gear lol
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MaximusPrime

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Re: Advice on poor quality line
« Reply #281 on: August 02, 2016, 04:31:00 PM »

Turned my Treadmill in the garage on for the 1st time in ages today, a big decline in my SNRM while it was on (as attached)

Will need to investigate this
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roseway

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Re: Advice on poor quality line
« Reply #282 on: August 02, 2016, 04:43:20 PM »

Some years ago, treadmills were rather notorious for interfering with broadband. It's gone a bit quiet in recent years, but I'm not at all surprised that the issue has popped up again. I'm not sure if we ever worked out whether is was mains conducted or radiated interference, but it would certainly be worth trying a mains filter in the supply to the treadmill.
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MaximusPrime

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Re: Advice on poor quality line
« Reply #283 on: August 02, 2016, 06:00:03 PM »

@roseway,

In my uneducated opinion in electronics the problem is either:

- The outside transformer emitting EMI when the treadmill is turned on directly into the telephone cable
- The increased load causes the AC power to fluctuate more, the power adapters (transformers) for the phone & router which are beside the router are emitting more EMI

if it is either of the cases, should I ask for the electricity company to service their transformer?
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MaximusPrime

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Re: Advice on poor quality line
« Reply #284 on: August 11, 2016, 11:26:29 PM »

Had 8 disconnections today, was there a BT outage today?
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