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I have discovered that when using the BT supplied Home Plugs that when a device is attached to them and downloading a file that the SNR margin drops from around 5.5 to 3.5 on my unlocked HG612. As soon as the download stops, the SNR goes back up again.
Have tried all kinds of different physical setups (cables types, proximity to HG612, different power points, etc etc) but it makes no difference.
Anyone come across this and found a solution other than replacing them with a length of cat5 cable instead!?
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not surprised, they operate in similar (same ?) frequencies and mains wiring isn't exactly twisted pair and shielded as the amateur radio community are keen to point out.
Don't know if ferrites on the router power cable would help
--
Phil
MaxDSL - goes as fast as it can and doesn't read the line checker first.
MaxDSL diagnostics |
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I think the jump to profile 17a has meant that there can be conflicts now, have not had FTTC available to me to actually play and assess the impact.
It may be a case of people having to balance the pro and con, but Ethernet is still the king and still cheaper.
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If it really is caused by the HomePlug signal causing interference on the modem, you could try using an RF filter like the Tacima 6 Way Mains Conditioner. I've seen suggestions that this suppresses the HomePlug signal pretty effectively, so could be a solution.
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Ferrites didn't help in my case, I had lots of issues until I replaced the Homeplugs with cat5,
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Impact on mine was about 4Mb/s, and I'm > 1Km from the cab, so a big impact.
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I must do some measuring - however the power for my Modems and routers (as well as the computers and screen) is supplied via a UPS - so that may filter out the effect of the Powerline signal.
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I only saw a 0.1dB drop in SNR margin when I was downloading. I'm using Solwise NET-PL-500AV plugs and the one downstairs is right next to the master socket with the modem a couple of feet above.
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I still dont understand why people to go all measures to avoid using ethernet cables. to the OP spend a few £ get some long cable and install it.
BT Infinity 2 Since Dec 2012 - Estimate 65.9/20 - Attainable peak 110/36 - Current Sync 71/20
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I must do some measuring - however the power for my Modems and routers (as well as the computers and screen) is supplied via a UPS - so that may filter out the effect of the Powerline signal.
Depends on what type of UPS you have.
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