There’s this (although I don’t understand “beamforming” in this context”:
Multiple-Input Multiple-Output (MIMO) Capabilities with Beamforming The HomePlug AV2 specification also incorporates Multiple-Input Multiple-Output (MIMO) capabilities with beamforming, which offers the benefit of improved coverage throughout the home; particularly for previously hard to reach outlets. MIMO enables HomePlug AV2 devices to transmit on any two wire pairs within three-wire configurations. Whereas HomePlug AV always transmits on the Line-Neutral pair, HomePlug AV2 can transmit on any two pairs formed by the Line, Neutral or Ground wires (i.e., Line-Neutral, Line-Ground or Neutral Ground). This allows for significantly improved peak data rates and performance. MIMO uses two independent transmitters and up to four receivers, with beamforming required to maximize the performance on the independent streams. Some regions and some homes do not have the third wire required to implement MIMO however HomePlug AV2 automatically switches to standard SISO operation whenever the third wire is not available. From: https://content.codico.com/fileadmin/media/download/datasheets/powerline-communication/homeplug-av-av2/homeplug-av2-whitepaper.pdf From: AF <[email protected]> On Behalf Of [email protected] Sent: Friday, November 21, 2025 2:44 PM To: 'AnimalFarm Microwave Users Group' <[email protected]> Subject: Re: [AFMUG] FTTH and outbuildings Good point. It was probably 20 years ago when doing the experiments. I was thinking I had to install a capacitor across the legs of a box to get the signal to cross over but it turned out that the hot wire was not needed for the signal. From: AF <[email protected] <mailto:[email protected]> > On Behalf Of Bill Prince Sent: Friday, November 21, 2025 1:37 PM To: [email protected] <mailto:[email protected]> Subject: Re: [AFMUG] FTTH and outbuildings That's a neat trick. Signalling without power. bp <part15sbs{at}gmail{dot}com> On 11/21/2025 12:33 PM, [email protected] <mailto:[email protected]> wrote: No idea. I do know they can signal through a circuit with the breaker turned off.
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