DRM vs. DRM+: Key Differences in Digital Radio Mondiale

This article breaks down the distinctions between DRM (Digital Radio Mondiale) and its upgraded version, DRM+. We’ll explore the parameters that set them apart, offering a clear comparison for anyone interested in digital audio broadcasting technologies.

What is DRM?

DRM stands for Digital Radio Mondiale. It’s a digital audio broadcasting technology designed as a significant improvement over traditional AM and FM radio. DRM offers superior audio quality and the capacity to accommodate a greater number of stations. Operating on frequencies below 30 MHz, DRM transmitters can cover extensive distances, leading to the alternative name “DRM30.”

Beyond just audio, DRM also transmits data, including RDS-type metadata and program-associated data, enriching the listener experience. For those seeking in-depth technical specifications, the ETSI website provides comprehensive documentation.

DRM+: The Evolution of Digital Radio

DRM+ represents an upgrade to the original DRM standard. The most notable change is its use of VHF band frequencies, ranging from 30 to 300 MHz.

DRM vs. DRM+: A Detailed Comparison

Let’s examine the core differences between DRM and DRM+ across several key parameters:

In essence, DRM+ leverages higher frequencies and a wider channel bandwidth to deliver improved audio quality and higher bit rates compared to its predecessor, DRM.