Simplified DRM Broadcast Chain

Simplified DRM Broadcast Chain

Figure shows a very simple ‘single-service, single transmitter’ broadcast chain and depicts the general flow of different classes of information (audio, data, etc.) from their origination in a studio or control centre on the left of the figure to a DRM receiver on the right.

Transmitter Block contains Studio, DRM content Server, Modulator and Transmitter.

1. Studio: Provides Audio Program and Data(Text) 
2. DRM content Server: Encoding and Multiplexing.
3. Modulator: Modulates and creates base band RF signal.
4. Transmitter: Boosts RF power to radiate in certain coverage area.

Receiver Block contains Receiver Front End, DRM Demodulator, Demultiplexer, Sound reproduction and Display.

1. Front End: Receiving antenna and RF amplifier.
2. Demodulator: Base band signal.
3. Demultiplexer: Separates Audio & Data (Text) 
4. Sound reproduction: Reproduces sound through audio amplifier speaker system.
5. Display: LCD displays the Text data (journaline)

Reference: DRM hand book V.05

For Details click link: www.drm.org