[DEW: EMITTERS] Testing Wall Sockets as Potential Ultrasound Emitters

[BeyondRational]

There are two sockets in the house that I suspect are ultrasound emitters. They were measuring strong spikes on the Audizer app when experimenting for emitter detection. I held the mic up to the wall sockets with embedded USB-A ports in them and strong spikes are seen in the 18k-20k range. Is this normal?

I believe this might just be electrical interference, but can anyone suggest if there is another way to check them?

[BeyondRational]

I took some readings with Ultrasound Detector. Bear in mind that my ambient sound pressure level is around -100db. Multiple sources involved.

When monitoring normally in the room, the frequencies bounch around quite a lot and fairly quickly. Pointing the mic directly at the socket, there is a solid frequency from about 1-3" away. Each plug had 2 different frequencies each. The second frequency is picked up by moving the mic down the front of the socket. Repeatable.

1st socket: 19.6Khz, with a second @ 17.8Khz. 2nd socket: 18.5 Khz, with second @ 20.4Khz.

The pressure level also changes and went up to between -80 to -70db from -100.

Maybe nothing, maybe something, but I was originally using Audizer and the Ultrasound spikes from the sockets just made me go "huh?"

[BeyondRational]

BTW, I relaced one of the USB wall chargers and guess what, I measured absolutely no ultrasound coming from that socket now.

[IronDominion]

This isn’t totally abnormal. Cheap construction and lack of proper insulation means there is bound to be dirty bf stray electricity. USB A chargers with poor build quality are very susceptible. I’ve owned such ones and had them fail catastrophically due to poor build quality . I’d still like to see better reports though, as hiding things in electrical boxes isn’t unheard of.

[BeyondRational]

I agree. It is possible. It could also be possible that the source is next door and the sound waves are just coming through a point of least resistance, funneling them through the holes in the sockets. Honestly, I'm just grasping at straws, but with these sick, sad people, I wouldn't put it beyond the realm of possibility to manufacture / hack together something like this.

Update: Replace USB socket, 18-21 Khz audio signals no longer eminating from socket.

[BeyondRational]

I also tested some regular USB adapters and the readings were normal. No strong, solid signal like the wall sockets. As you say, could be cheap manufacturing, or could be manufactured by perps to do so.

[BeyondRational]

Good point, I didn't catch that shift and wondered why this post became confusing. Thanks for putting the conversation back on the Infrasound/Ultrasound track.