Possibly. You can send information through power lines for example. There are consumer devices that use it for like local internet connections, and I think power companies have started using something like it to replace meter readers.
There are multiple ways to transmit radio frequencies through computer monitors (e.g. this), and communication via ultrasonic sound which we can’t hear.
Possibly. You can send information through power lines for example. There are consumer devices that use it for like local internet connections, and I think power companies have started using something like it to replace meter readers.
There are multiple ways to transmit radio frequencies through computer monitors (e.g. this), and communication via ultrasonic sound which we can’t hear.