Multi-DRM signals

Multi-DRM signals

Our best specialists will respond in brief to your questions. We will post them regularly. Please submit them in writing and in audio with your picture and we will post the answers here. Please keep your questions short and relevant and send them to: projectoffice@drm.

1st June 2021

Recently you mentioned that you demonstrated in India multi-DRM signals from a single
FM transmitter. How many can be actually broadcast? (Group of DRM supporters in Vizag, India)

The number of individual DRM signals is only limited by the bandwidth of the transmitter. Every DRM signal can originate from an individual broadcaster, who remains in full control over both content and the on-air configuration (e.g. DRM modulation parameters and content elements).Transmission of up to 6 DRM digital blocks (18 Audio + 6 Multimedia Journaline services) was demonstrated from the VS series Nautel transmitter, which has 600 kHz bandwidth, enabled by the RFmondial DRM modulator.

Following 4 configurations of multi-DRM were showcased: