Hi Richard,
If the unintentional radiator includes a digital device, refer to FCC Part 15.33(b)(1) under “Frequency range of radiated measurements”. With the 180MHz clock, the upper RE frequency is 2GHz. If the unintentional radiator excludes a digital device, refer to FCC Part 15.33(b)(2), which imposes other frequency limits. In addition, you should download the latest 2008 version of FCC Part 15 at http://www.fcc.gov/oet/info/rules/. Or was 2002 a typo? IHTH. Best regards, Ron Pickard [email protected] From: [email protected] [mailto:[email protected]] On Behalf Of Gartman, Richard Sent: Wednesday, April 29, 2009 4:37 PM To: [email protected] Subject: Question regarding 47CFR FCC part 15: 2002 We have a class B unintentional radiator with a 180 MHz clock in it. Should I be concerned with radiated emissions above 1 GHz? What sections of FCC regulations apply? What is the acceptance criteria? Any guidance on this is greatly appreciated. Thanks W. Richard Gartman, MS, CSP Product Stewardship Manager Texas Instruments, Education Technology 7800 Banner Drive, Dallas, Tx 75251 Office: 972-917-1636 Email: [email protected] Fax: 972-917-0668 URL: www.education.ti.com www.education.ti.com/us/productstewardship P Please consider the environment before printing this email. There is only one earth - don't waste it. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ 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]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ 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]>
