Radio 4 FM isn't going to be affected by these
But Ambulance services, the Police, Military etc etc all use shortwave radios, and these devices defecate all over that spectrum.
Let me repeat that, the interference these devices cause you probably won't see, which is one of the problems. "Hey, it works for me, so why should I care?"
"The D-Link adaptor has push-button encryption: press the key on each adaptor and they'll jointly agree on and share a 128-bit AES encryption key. "
Oh, I wonder why they would need to use encryption? Oh, that's right, it's because the house wiring acts as a broadcast antenna (mains wiring isn't shielded) so any Tom, Dick or Harry can sniff your network from down the road.
It's just a shame that the group fighting against these devices seemed to have hired a web designer from 1997:
I think a far more interesting story for the Reg to print would be about how these devices have been certified for use when they clearly and plainly cause problems to other SW band users. They are not fit for the purpose they are sold for.