EMC compliance for HDMI Radiated Emissions testing (EMI) in Australia is a subject that many designers face with HDMI been incorporated into many consumer products. At EMC Bayswater we quite often see high speed data ports with cables that connect to various other products such as Ethernet Local Area Networks (LAN), HDMI etc. Many times these ports have been developed over years and have defined drivers with suitable filtering and so forth. HDMI poses a similar problem to the computer monitor video signal of the past apart from using faster data speeds and been much more complex.
Customers are required to prepare their product in the correct configuration for FCC Part 15 EMC testing. This includes the functionality or operation and also the associated cabling and much more. This brief blog article will highlight some of the requirements. FCC Part 15, Subpart B and also Industry Canada (ICES 003 etc) references the methods as per ANSI C63.4: 2014.
Why is FCC Testing Part 15B and 15C in Australia changing? FCC testing in accordance with the Code of Federal Regulations, Title 47, Part 15 (47 CFR 15) i.e. FCC Part 15B and Part 15C is going through changes. These Federal Communications commission changes were initially to be introduced July 2016. Due to many EMC testing laboratories and other regional market pressures this has been delayed until July 2017. These FCC testing and accreditation changes affect compliance of any product sold, marketed or distributed in the USA and associated regions.
If your reading this, you maybe seeking how to avoid EMC testing by possibly using some EMC testing exemptions. Although this brief article will highlight some possible exemptions for testing, you are still responsible for your product. The majority of EMC testing performed at EMC Bayswater for the North American market i.e. the United States falls under the requirements of FCC Part 15 (CFR 47) Subpart B. FCC Part 15, Subpart B is for the testing of products that are not transmitters, receivers or transceivers.
EN 55032 & CISPR 32 is a specific EMC product standard that covers EMC compliance testing of Multi-Media equipment (Information Technology Equipment (ITE), Audio and Video equipment, Broadcast receivers & Combinations).
Why does my company need EMC services? EMC or electromagnetic compatibility is a test required by the different governments around the world on products with electronic circuitry. It is performed to determine and regulate the product’s radiated and conducted emissions. The aim of the test is to ensure that the emissions are within the acceptable range or spectrum of compatibility so as not to adversely affect the performance of similar products and at the same time for the product not to be affected by the emissions from similar products.