Louise Barrett introduced the Solwise Networking over the Mains/HomePlug range

[London2272]

So...we can deduce from this careful "notching" of a few things like aeronautical radio frequencies that these devices chuck out radio interference over everything else with abandon, as the anti-PLT lobby have been saying. Well, thanks but no thanks, I think I'll be avoiding powerline adapters like the plague.

[G3YBO]

These will cause interference to someone in the near area......Use wirless or RJ 45 cable and

get a better working internet connection

[BarryMung]

Its a bit like selling poisoned bird seed and hoping your favorite bird doesn't eat it.

RF spectrum is limited and cannot be used to transfer 'Data' over parts of the spectrum that are already allocated to other users.

Would you want local dogs using your garden as a toilet freely? Or, neighbours putting all their rubbish sacks in your pathway/garden?

Didn't think so.

Although you cannot see the damage and hassle these devices cause to other users, accross the board, this is what they do.

[Ayrshore]

From your own website:

"Firmware version 2.1.7

This f/w has the Amplitude Map(AMAP) for the MX band modified to "notch out" the frequencies 108 to 137MHz (Aeronautical navigation and Air Traffic control) and 209-230MHz (DAB radio). The HPAV band uses the standard EU AMAP.

Includes release notes - uses the standard 1gig utility as supplied on the CD."

[Ayrshore]

"These changes have been implemented in response to worries raised by a number of UK amateur radio enthusiasts about interference in aeronautical and broadcast bands. They are NOT required by CE or by Ofcom or as part of approval. This is a voluntary f/w modification which users do NOT have to do."

[414jockey]

I have just started using these and I think they are excellent. They helped to extend the network to parts of the building that wireless did not reach (Because of 2 feet thick stone walls). They have not caused any interference with any other equipment.

[BarryMung]

@414jockey Try listening to any shortwave radio broadcast, its not just Solwise (which I have used for other products in the past), but any 'homeplug' or Ethernet over mains wiring.

I don't listen to what you might, but this technology does cause severe interference to shortwave and other broadcasts you are probably not even aware of.

If I, or any other user of any available technology caused you problems with reception of radio, TV or anything else, you would too be rather annoyed I expect!

[mlhifi]

@BarryMung Absolutely! I have some very expensive and sensitive radio equipment and, touch wood, have not had a problem with PLT devices! But the time might come when I do... but UKQRM are keeping up the pressure on the "powers-that-be and, who knows, maybe they will succeed!

[MrSixdoublesix]

@ayrshore wow clearly your uneducated and like to comment rubbish on videos to dissuade others to make an informed decision. They are not illegal.

Source: ME = 37 years networking experience and YOU = DORK!

[Ayrshore]

@MrSixdoublesix Not at all. Read the law, and try to use an HF radio within about 200-400 metres of a home with ANY pair of powerline networking adaptors installed.

They WILL disrupt radio reception, which means they ARE illegal.

[santiago4747]

@MrSixdoublesix just out of idle curiosity if they don't cause Interference then why would you have to have Notch Filters ??. As far as i'am aware the only time i've ever seen Notch Filtering applied to Device's is when said Device is causing Interference to other Equipment. If they don't cause any interference as you say then WHY Notch Filter the device ??.

[mlhifi]

@santiago4747 In a nutshell my friend!

[SolwiseLtd]

HomePlug adapters are notched to reduce interference in the band that radio hams are interested in, this results in a lower data throughput on the HomePlug standard as a courtesy to radio hams. Of course these adapters output at -50dBm. I have seen reports of interference with DAB radio but have not seen this actually happen in any of our tests. These adapters are all CE approved and have been sold in the millions in the EU.

Louise

[Ayrshore]

@SolwiseLtd Nonsense. They're not CE approved. They can't possibly be.

If they didn't cause intereference, they wouldn't need to be notched.

[Eddie6762]

Dont these cause cronic interferance to broadcast radio ?

[Ayrshore]

@Eddie6762

Yes, and they're illegal to sell or use in the UK.

[mlhifi]

@Ayrshore Not true; but they SHOULD be!

[Ayrshore]

@mlhifi It is true. Read the EMC regulations. Just because Ofcom aren't willing to do their job doesn't make them legal.

[mlhifi]

@Ayrshore I don't think that, because a product doesn't meet EMC regulations, it is illegal to sell it! They don't make the law! Where does it say that? I'm not being flippant, I really do want to know!

[mlhifi]

@Eddie676, yes they certainly do! It's not just broadcast radio; it's the emergency services too including aircraft communications both on showrtwave,to cover the oceans, and VHF for local traffic!

They should be removed from sale!