Comtrend/Powerline Networking Interference to Aeronautical Frequencies

These sound like Comtrend units, as supplied by BT with BT Vision. The screech seen here is at the end of an afternoon's disruption to short wave listening and is just below the 21 metre broadcast band, in an aeronautical slot. When data is being carried, radio reception from 4 to 30 mhz and possibly higher is obliterated.

I have been trying to locate this interfering power line networking installation for months, it's some distance away, not in this street, or any immediately adjacent ones. In the past two years, Ofcom have been called out 3 times to remove interference from power line networking like Comtrend/Homeplug/Devolo, whatever, it all does this, in this area. Investigation continues.

If any power line networking adapter manufacturers are able to show me that their devices can operate within this area without destroying radio reception over a range of several mhz, I will gladly retract this video, or post a glowing recommendation for their product.

Until then: power line networking adapters are illegal transmitting devices which jam a huge range of frequencies every time they're used, contrary to regulations set down by the ITU and other agencies. They should all be removed from our markets now, before any more damage is done. They are merely a convenience technology. If they were banned, as they should be under existing regulations to prevent such abominations, no detrimental effects on information technology would result, and communications technology would improve and continue to develop, as it always has.

Category:

Science & Technology

Tags:

• comtrend
• btvision
• pla
• plt
• powerline
• adapter
• interference
• jamming
• shortwave

[roogalater]

These things don't work well either.

[G3YBO]

PLT and HF can not use the same spectrum....Its not

only amateurs and SWL's who suffer it is now so wide

spread I am sure many have interference and do not know from what or where it comes from.....

Roger G3YBO

[hamshackleton]

These cursed things need banning - pronto. They are a liability to anyone who NEEDS to use hf radio in their line of work.

google ukqrm and join in the fight to get them removed from the world!