Two ultrasonic articles

[Max]

Originally Posted by Esteban

A beam of IR light –in this case modulated– is an antenna with the advantage free of interference as a metalic antenna. Here exist a tone in receiver. So, you can made with it the job.

The same with ultrasonic.

Hi,
but... from when an IR light beam is an ANTENNA ???

An ANTENNA MADE OF PURE LIGHT, MAN !

I hope you mean here and not in some parallel universe!

Seems much of these concepts about LRL were developed as japanese cartoons of the 70's....

I think I found the plan of such an LRL...

Kind regards,
Max