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Asymmetric digital sidebands are a powerful tool now available to FM-band digital radio broadcasters. The power in one sideband is reduced to protect a nearby first-adjacent channel signal and the power in the other sideband is set to maximize digital coverage. The spectrum plot below illustrates asymmetric sidebands, showing an FM-band digital radio signal (including the analog simulcast of the main channel audio) where the upper digital sideband is at a reduced power level compared to the lower digital sideband.

Radio and TV broadcast engineers planning to attend this year’s NAB Show New York on October 22-23, 2025, should add the following exhibit floor technical sessions to their Show calendars.  These sessions, organized by NAB’s Technology department in conjunction with the New York chapter of the Society of Broadcast Engineers (SBE) and the Advanced Television Systems Committee (ATSC), are available to all attendees

The Amateur Radio Operators Reception, affectionately known as the Ham Reception, will be held on Tuesday, April 16 at 6 p.m. in room W102-104 of the Las Vegas Convention Center. The reception is free­ of ­charge and open to all attendees of the 2024 NAB Show.

The National Radio Systems Committee (NRSC) is a technical standards-setting body cosponsored by NAB and the Consumer Technology Association (CTA). In October, the NRSC’s three subcommittees met in New York in conjunction with NAB Show New York 2023 and each adopted a new document, which have now all been published on the NRSC website and may be downloaded free of charge.

An HD Radio in-band/on-channel (IBOC) hybrid radio signal includes both analog and digital signal components (see figure). One important aspect of the signal design is how well the digital portion of the signal replicates the coverage of the legacy, analog portion.

Both Detroit and AM radio have been hot news topics lately as the broadcasting industry and others respond to the automotive industry’s decisions on removing AM radio from some vehicles, electric vehicles (EVs) in particular. David Layer had the opportunity to visit Detroit in early June for AutoTech: Detroit 2023 and decided to rent an EV and see what the radio listener and EV rental customer experience would be like in Motor City.

The annual CES (formerly known as the Consumer Electronics Show) offers an amazing array of new technologies and 2023 was no exception. The new West Hall of the Las Vegas Convention Center is where automotive [...]

Xperi’s AutoStage is a hybrid (over-the-air plus internet connectivity) radio platform that brings tremendous value to both broadcasters and listeners. The first automaker to sell vehicles with an AutoStage-based infotainment system was Mercedes, introducing this technology with their S-class vehicles in late 2020.

AM radio stations around the country are considering a switch to all-digital AM broadcast technology, an option since October 2020 when the all-digital AM service, using the HD Radio digital technology developed by Xperi, [...]