I didnt mean to create RF energy, which im sure will be a byproduct, but
rather a magnetic feild which then induces a current in a nearby inductor.

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On Thu, 22 Apr 1999, Dave VanHorn wrote:

> ----- Original Message -----
> From: Lynx {Glenn Jones} <jones_gl@EFN.ORG>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Thursday, April 22, 1999 5:33 PM
> Subject: Re: PIC and RF link (FRID?)
>
>
> > I dont know if this is helpfull, but instead of RF, you might connect the
> > pic output to an inductor, then have the reciever be another inductor
> > (amplified of course) but  maybe this would take more current, or would
> > not have good enough range. just a thought.
>
> This is more likely going to toss your PIC into cmos latchup.
>
> This is NOT viable. What you will do is create a fair bit of EMI on every
> odd harmonic, and others if the waveform isn't symmetrical. By the time you
> get done filtering it so the harmonics are all -60dBc, you'll have a real
> mess of componentry.
>
> Motorola and Maxim both make nearly transcievers on a chip.
>
> It IS possible to key an oscillator directly with a PIC output, and generate
> CW, and hams have done so, working over distances of thousands of miles.
> The conditions have to be right, the antennas are large, and the receivers
> are expensive.
>