Signal modulation is one of the most basic and important concepts in the RF industry. It consists of using the variation of one or more parameters of a carrier signal to transmit information, ...

Over the past year I’ve been writing about potential transmission standards for a nextgeneration broadcast platform (NGBP). The most promising standards are all based on orthogonal frequency division ...

Also, parametric tests inherently check only individual radios. As digital modulation becomes more complex, these tests become less and less effective. EVM is the gold standard used during research ...