A quick 10 min video which touches on the interesting bits found in a teardown of a D-LINK Power Line Adapter. (DHP-308AV). Blog entry here: electronupdate.blogspot.com/2...
My neighbor thought he wanted eithetnet-over-powerline until his Asian-made hardware caused RFI problems to me. Oddly enough he soon found out that his RFI emitter was also susceptible to RFI ingress. His expenditures were quickly rendered useless!
I do love your teardown videos, if only because you're the only one I know who regularly deencapsulates chips. I was a bit disappointed to see you using binwalk (because it's the same crappy tool I use) until I saw that this firmware is from 2012. Binwalk can definitely handle that
I also had one of these D-Link devices in the mid 2010s. It never worked very well, I suspect because the sections of house we tried to join together were far apart and only connected at the main breaker
These devices work similarly to ADSL modems, except that they send their signal over power lines instead of a phone lines. They use a similar communication technique called COFDM where the signal is sent over many narrow channels instead of one wide channel. As a result, interference will only take out one or some of the channels instead of taking down the whole communication. Also, I was not expecting the Ethernet chip to use DSP technology, but according to the datasheet, even something as simple as a 100 Mbps Ethernet port uses digital signal processing actually.
Hey can you do a teardown of a teardown on that desk lamp with voice recognition that Bigclive did a vid on yesterday? There's a single chip doing the voice recognition with no internet connectivity at all and using mere milliwatts. I just don't understand how such a thing could be even possible with something so primitive.