I have long been an advocate of AM bandwidth restriction to approximately 5 kHz — long before the recent trend and well before digital IBOC and/or DRM came on the scene. The genesis for my advocacy ...

Over the past couple of years, I’ve spent some time doing IBOC testing to determine its impact on the AM band. One such test was conducted in Cincinnati at WLW and in New York City at WOR. During ...

Amateur radio license exams typically have a question about the bandwidths taken up by various modulation types. The concept behind the question is pretty obvious — as guardians of the spectrum, ...

Q: I hear that Wi-Fi may become so popular that channels may get used up at 2.4 and 5 GHz. What happens then? 60 GHz? – Bonnie, San Francisco A: Wi-Fi usage is definitely growing considerably and will ...

Automakers attempting to remove AM radio from vehicles has been an ongoing and bizarre battle. Companies want it gone due to claims that the bandwidth can interfere with the newer tech equipped to ...