If you follow the rule of thumb that the signal bandwidth should be less
than the carrier -- nothing. Your signal would be less than 1Hz, and you
can't hear sounds that low.

If you modulate your 1Hz "carrier" with something audable you'd hear your
original signal fading in and out at a 2Hz rate.

I imagine that a geo- or astro-physicist might be interested in
electromagnetic effects below 1Hz, though.

"Curious" wrote in message
om...
What would I hear on a 1Hz AM reciever?