Re: Radio: Absolute Basics
- From: BobG <bobgardner@xxxxxxx>
- Date: Sun, 24 May 2009 12:59:40 -0700 (PDT)
On May 24, 3:22 pm, FyberOptic <fyberop...@xxxxxxxxx> wrote:
Howdy folks. I've been really interested in building a simple AM radio===========================================
for a long time,
Think about sending a tone... Say 1khz. We know that the carrier must
be modulated (multiplied) by a modulating signal that goes from o% to
100%... so make the carrier 1mhz and make the modulation a 1khz square
wave. This would look like 500usec of 1mhz on, 500usec of nothing,
Match this to something that will drive an antenna. Should be able to
hear it on an AM receiver,
.
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