FCC Part 15 - Radio Frequency Devices

Focus:

The scope of FCC Part 15 is summarized as "This Part sets out the regulations under which an intentional, unintentional, or incidental radiator may be operated without an individual license. It also contains the technical specifications, administrative requirements and other conditions relating to the marketing of Part 15 devices." Power supplies and many other electronic products that fall under the category of unintentional radiator are required to meet the EMI limits spelled out in subpart B, which starts on page 28 of this document. Specifically, section 15.107 (page 33) lists conducted EMI limits for Class B and Class A devices. Section 15.109 (page 34) lists radiated EMI limits for Class B and Class A devices. Product labeling requirements are also given. The following sections within subpart B may also be helpful: Section 15.101 Equipment authorization of unintentional radiators (lists categories of equipment and explains what form of compliance is required); and 15.102 CPU boards and power supplies used in personal computers; and 15.103 Exempted Devices.

What you’ll learn:

• How to understand Class A and Class B limits on conducted and radiated EMI as defined by FCC Part 15

Notes:

This copy of the FCC Part 15 rules, which is directly downloadable from the FCC website, is labeled "unofficial." The official copy of Part 15 is available through the Federal Register, which is linked to on this FCC web page.

View the Source

Author & Publication:

no author specified, FCC, Government website, Jul 10 2008

This article summary appears
in the HOW2POWER Design Guide.

The Design Guide offers
organized access to
hundreds of articles
on dozens of power conversion
and power management topics.

The Design Guide search results
include exclusive summaries
and accurate "how to" analysis
to help you make faster,
more informed decisions.

Search
for more articles