Re: Experience with odd effects. -Reply

Matthew Redmond ( (no email) )
Tue, 29 Dec 1998 21:34:21 +1300

Hi Tom et al,

> On your second item I once hooked up a long wire to a amplifier and
picked up a AM radio station >loud and clear. It amazed the heck out of me
since the wire was going to go to a Commodore 64 >computer for the sound,
the monitor didn't have sound. The cable was coiled up at the time also.

What frequency was the station on?

Also I've had some fun with my neighbour who is a HAM radio operator. When
his aerial's pointing over the house I can hear mumbling of his voice
through the speakers of the radio my computer is plugged into...even when it
is set to auxiliary for sound from the computer...ie not am or fm. It's
either the speaker coils, one (some) of the cables. Either way its a fair
bit of radiation he pumping out.

On a similar line of thought, a person I once worked with used to work at
one of the biggest radio transmitter stations in the country (one room was
lined entirely in copper to shield them). One day one of the metal rods in
the brick wall started resonating (an inductive force from somewhere). It
got so hot that the moisture in the concrete wall expanded and blew the wall
around it to bits. Something like that anyway. Suffice it to say they
spent most of their time in the copper shielded room.

Matthew.