Hi David, Part 15, first known as the Low Power Rules in the 1930's, has been around since 1949 or so. Originally unlicensed transmitters were ok as long as their field strength was 15 uV/m or less at a distance lamda/2pi, lambda being wavelength.
As the electronics industry grew and radio interference sources proliferated, FCC modified and added to the requirements, first with radiated and line conducted emissions for receivers in the 30-890 Mc range (they hadn't perfected the MHz yet), then with product based limits for garage door openers, anti-pilferage devices, toys and walkie talkies, etc. In 1976 a Notice of Proposed Rule Making (NPRM) Docket 20780 was released, proposing additional categories of devices to be regulated , including data processing equipment, and relaxing the lamda/2pi limit. By the time the docket was placed into the Rules in 1979, references to other devices was eliminated and the first version of the digital device rules went into effect. best regards Tom On Oct 10, 2007, at 7:19 PM, David Lohbeck wrote: hELLO, Does anyone know when the FCC rules (part 15) went into effect (1982)? Also, was there a date that a U.S. safety law WAS enacted and by who (OSHA)? Thanks,, Dave Lohbeck _____ Check out <http://us.rd.yahoo.com/evt= 1201/*http://autos.yahoo.com/new_cars.h ml;_ylc=X3oDMTE5NWVzZGVyBF9TAzk3MTA3MDc BHNlYwNtYWlsdGFncwRzbGsDYXV0b3MtbmV3Y2Fy> the hottest 2008 models today at Yahoo! Autos. - ----------------------- ---------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This e-mail has been scanned by MCI Managed Email Content Service, using Skeptic(tm) technology powered by MessageLabs. For more information on MCI's Managed Email Content Service, visit http://www.mci.com. ______________________________________________________________________ - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
