A simple and often raised question. The DRM standard is the only all broadcast band (SW, AM, band I, band II – VHF/Fm and band III) open digital broadcasting standard.
In the past the AM flavour was known as DRM30 and the VHF variant as DRM+. This gave the false impression that there are two standards or that one part is the more modern than the other. The DRM standard is only one, sharing the same features and benefits across all the broadcast bands.
To be more explicit and get rid of a possible confusion nowadays, we call it DRM for AM (below 30 MHz) and DRM for FM (VHF band), which is above 30MHz.
In a nutshell, DRM is one free for all standard, available in all broadcast bands.
Read more:
glance.drm.org.