Posts tagged as EMC

Revised EMC/EMI document lodged with WTO

The Independent Communications Authority of South Africa (ICASA) and the South African Bureau of Standards (SABS) have lodged a notification with the World Trade Organisation (WTO) under Article 5.6.2 of the Agreement on Technical Barriers to Trade (TBT). The document G/TBT/N/ZAF/220 is available from the WTO website.  As a signatory to TBT, South Africa is […]

Radio amateurs step up HF noise floor monitoring

It is a well-known fact that many new electronics devices becoming available on South African market do not comply with EMC and EMI standards. In many instances standards and regulations cannot keep up with technology developments often resulting in unintended interference consequences affecting radio communication. Some of the current developments include magnetic charging devices of […]

Electromagnetic compatibility – is there a compliance issue?

  The SABS technical committee TC73 oversees electromagnetic compatibility (EMC). Its business plan states: “Growing use of the available frequency spectrum for various communication purposes requires increasing control over interference and emissions from all types of equipment.” Available expertise is fragmented and there are insufficient measures to ensure conformance with regulations. The business plan was approved […]

EMC/EMI compliance to be reviewed

  The influx of low-quality products into the country and the risk this poses to consumers has compelled the South African Bureau of Standards (SABS) and the Independent Communications Authority of South Africa (ICASA) to review the process of issuing electromagnetic interference/compatibility (EMI/EMC) certificates of compliance (CoCs). The Consumer Protection Act (Act No. 68 of […]

EMI and signal integrity for PCB design

  Let’s do a comparison of electromagnetic interference (EMI) design and signal integrity. EMI focuses on the associated specifications and testing requirements and interference between neighbouring equipment. Signal integrity addresses the degradation of signal quality to the point where erroneous results occur. But the overlap in design techniques at the board level is considerable. We […]