I was curious about FCC, I looked, ...
For the hobbyist in us..
Sec. 15.23  Home built devices. OK with limitations..
http://www.hallikainen.com/cgi-bin/section.pl?section=15.23
No more than 5 units, not marketed, not a kit, employ good engineering
practices, cease operation if notified by a Commission representative (15.5)

For Marketed Items, I think you need to read most of  part 15. for
Unintentional Radiators. (you are not trying to broadcast.)
This looks like it checks for all pulses of 9 KHz or greater

Dwayne Reid wrote:

> At 09:24 PM 6/6/02 -0500, Nick Veys wrote:
> >I'm curious about the rules involving sales as well, I might try to make a
> >somewhat Commercial product soon. Anyone know the rules?
>
>  From the picist:
>
> From:   Harold Hallikainen <haroldhallikainen@JUNO.COM>
> Subject:      Re: Any PIC-based Product requires FCC Approval?
>
>  > A reminder that I have hyperlinked FCC rules at
> <http://hallikainen.com/FccRules>
>  >
>  > Harold
>

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