See 15.103(a) for the exemption, which says: "A digital device utilized exclusively in any transportation vehicle including motor vehicles and aircraft."
Note the term used by the FCC is "exclusively". I noted that you said "primarily" which suggests, IMO, that other non-vehicle applications may exist and consequently void this exemption. Eric Lifsey Compliance Engineer National Instruments Mike Palmer <[email protected]> on 02/23/98 07:36:30 AM Please respond to Mike Palmer <[email protected]> To: [email protected] cc: (bcc: Eric Lifsey/AUS/NIC) Subject: Re: FCC Questions. Doug McKean wrote: > <*snip*> > > Yes. > > CFR 47 Part 15 specifies not only minimum > frequencies at which your little device > operates (I believe anything above 7kHz) > but also power (I believe anything above > picowatts). I'm positive someone here will > list the specifics. I unfortunately do not > have the standard in front of me. > > > Specifically do I need to: > > > > 1.a) Spend money having someone test emissions. > > Yes. For reason why see answer to 1.b) below. > > > 1.b) File some paperwork with the FCC. > > Yes. Since your device will be used in a residence, > you will need Class B which involves registration. > Registration will cost you. > What if said microcontroller-based device is designed primarily for use within an automobile and is, again, not an intentional transmitter (e.g. say, a PIC-based performance computer or a data aquisition unit etc). Does the fact that it's not for use in residential areas loosen the FCC restrictions at all? -- - Mike ------------------------------------ Mike Palmer Design Engineer Northern Digital Inc. ------------------------------------
