Reading this article on Wireless USB, prompted me to think about just how pervasive the RF modulation known as OFDM is becoming. I'm someone who pretty much has to know how something works, once it enters my consciousness. So, in mid-2000, while researching Australia's chosen form of digital TV, Digital Video Broadcasting - Terrestrial (DVB-T), I discovered a fascinating form of RF modulation, known as Orthogonal Frequency Division Multiplexing (OFDM).