EWF-equipped DRM Transmitters – Your Question Answered

EWF-equipped DRM Transmitters – Your Question Answered

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.

Are all DRM transmitters equipped with Emergency Warning Functionality or is it an optional feature?

(Bengaluru engineer)

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The Emergency Warning Functionality (EWF) is a key part of the DRM standard. Any receiver claiming EWF capability must comply with its full specification – from reacting to alarm signals and switching to the emergency programme, to presenting the full emergency programme consisting of audio and Journaline text information. Transmitters which are DRM capable require a DRM modulator and content server in order to have DRM broadcasts with the integrated EWF feature. Note that – depending upon manufacturer and model – the transmitter may be retrofitted with DRM equipment to facilitate broadcasts.