Quote:
Originally Posted by Zicos
hello everyone. so I have placed all the circuits inside the box and the receiver circuit with the loops on the top of the circular box which is also metal and I noticed that it no longer detects the pen I rub on the clothes now it only catches a piece of plexiglass when I rub it. also it no longer catches any LED bulb while in the paper box it caught it from one meter. now it catches the screen from the radio only when I touch it while before it caught it from half a meter. why does the antenna box have to be metal??? is the function I describe correct??? what tests are there to know if it works as it should???
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the cylindrical top antenna it's not made from metal - the way you build it acts as a short circuit for signals.
I think is made from plastic, I will check to be sure.