Electronic designers may avoid considering electromagnetic compatibility because their exposure to electromagnetic field theory was so mathematically intensive. While mathematical models are important, focusing on the math can distract a person from appreciating the practical aspects of how electromagnetic fields behave. In my experience, the easiest way to understand EMI is to think of water. […]
In the Blog entitled Why Electronic Designs Produce EMI Part 1, we discussed why radiated emissions occur in electronic designs. A simple way to visualize electronic signal current forward and return paths was provided, and mismatched signal path impedance was briefly mentioned as one reason for signals to radiate. In this article, the significance of […]
“We are selling our part 15 unlicensed transmitter products successfully in the US. Our certification testing, reports, declarations, and labels are all consistent with FCC requirements, and we have an interest in selling our products in Canada. What do we need to do?” Canadian electronic product compliance law is fairly consistent with US law, which […]
Incorporating modules that have already been FCC certified can be a good way to introduce wireless functionality into a product line. While the use of pre-certified modules simplifies the compliance testing process, several factors must be considered. Certified modules have grant conditions associated with them. The grant conditions for a device are supposed to be […]