Nowadays most of the microcontroller clocks will be higher than 10 MHz, it will surely emit some r.f., but I found many of these microprocessor based devices in the market are not having fcc approval (I didn't see the fcc logo attached), does it mean they are exempted or they simply ignore fcc? >From my reading of part 15 and/or 97, yes, unless it is test equipment, or >a prototype - but you can't sell prototypes. You can't even peddle a damn >PIC >product that clocks over a few KHz! :-( _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body