I recently had a trip up to South Dakota from Colorado, and when driving long distances, I always have a CB radio with me. I'm a ham, but CB is better for road hazards. Anyway.. I had a friend with me, and I was showing her how the noise pollution is so very bad these days. In Denver, it's a cacaphony, even on an "unused" channel. Out of denver, in less populated areas, still noisy. Up in SD, where it's an hour between tiny towns, the receiver is almost silent. I wonder if we shouldn't drop the acceptable levels 10dB or so. Those regs were written when the average person might have one or two part 15 devices. I can usually get down to where they system is below the noise floor of the test house SA without any trouble. I've often wondered if our first alien contact might be the equivalent of the FCC telling us to SHUT UP!!!!! Far more plausible in my opinion than those 50's movies where "our nuclear weapons are threatening the galaxy". :-P On Mon, Oct 19, 2015 at 10:55 AM, embedded systems wrote: > Tom, I do not know how goes things in the US. > What I can tell you for sure is there is a huge RF garbage on the entire > spectrum > which is not subject to any FCC rule. > > Borrow a spectrum analyzer in the 9KHz-10GHz range and see with your eyes= .. > > good luck! > > > On Sun, Oct 18, 2015 at 9:55 PM, Tom wrote: > > > Vasile, > > > > Do you know if you do a one off is the regulations still apply? > > > > Thanks, > > Tom > > > > -----Original Message----- > > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behal= f > > Of > > embedded systems > > Sent: Wednesday, August 26, 2015 3:03 PM > > To: Microcontroller discussion list - Public. > > Subject: Re: [PIC] ,oe frequency RC oscillator > > > > Do you manufacture in large series? > > For small number of things you don't need any approval. See the Chinese > > stuff... > > > > Vasile > > > > On Wed, Aug 26, 2015 at 7:45 PM, Ian Thompson-Bell > > wrote: > > > > > I recently read an article that said devices with clock frequencies > > > below 9KHz do not need FCC or European EMC emissions approvals. I hav= e > > > a number of non-critical applications that could run at a clock > > > frequency of say 8KHz. > > > Are > > > PICs with RC oscillators viable at this low a frequency? Are there an= y > > > special issues I should be aware of? > > > > > > Cheers > > > > > > Ian > > > > > > -- > > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > > View/change your membership options at > > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > -- > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > View/change > > your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > > > -- > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .