With the release of version 3.2.3 of the RadBeacon USB firmware, it now supports iBeacon, AltBeacon, Eddystone UID and Eddystone URL advertisement types.
The RadBeacon USB is shipped with iBeacon and AltBeacon advertisements enabled and all other advertisement types disabled. This configuration can be easily changed through the use of the RadBeacon apps for iOS, Android or OS X. Simply follow the steps here to update your configuration.