service with audio and text content into a regular DRM broadcast (optionally replacing existing content and programmes in the broadcast). Activation of emergency alert When the emergency alert is required to be activated, the following steps should be taken: Activate trigger chain from authorities through studios to DRM Content Servers and ultimately the DRM receivers, to switch all receivers automatically to the emergency programme (see Figure 3). Broadcast (at least) one emergency programme covering at least the region of the emergency with audio + text information. FIGURE 3 Announcement management screen Conclusion The DRM broadcasting system has all required tools built in - and supported - by available chipsets for a quick and complete mass notification when disasters/catastrophes occur: Providing DRM receivers with switch signals and alternative frequencies to receive emergency programmes. Providing listeners (including impaired users) with complete and detailed information by audio and multilingual on-demand text (Journaline). Preparation in advance is key in three major areas: Alarm trigger routing (from central authority to DRM receivers). Content preparation for immediate availability (text information, audio loops/feeds. Full receiver functionality to be implemented (including EWF and automatic wake-up). ANNEX 5B HD Radio Emergency Alert System The HD Radio system can provide important new and enhanced emergency alerting capability. This functionality can be added at low cost by any station that has implemented digital broadcasts using HD Radio technology. Unlike analogue based AM/FM alerts, HD Radio alerts can provide
service with audio and text content into a regular DRM broadcast (optionally replacing existing content and programmes in the broadcast). Activation of emergency alert When the emergency alert is required to be activated, the following steps should be taken: Activate trigger chain from authorities through studios to DRM Content Servers and ultimately the DRM receivers, to switch all receivers automatically to the emergency programme (see Figure 3). Broadcast (at least) one emergency programme covering at least the region of the emergency with audio + text information. FIGURE 3 Announcement management screen Conclusion The DRM broadcasting system has all required tools built in - and supported - by available chipsets for a quick and complete mass notification when disasters/catastrophes occur: Providing DRM receivers with switch signals and alternative frequencies to receive emergency programmes. Providing listeners (including impaired users) with complete and detailed information by audio and multilingual on-demand text (Journaline). Preparation in advance is key in three major areas: Alarm trigger routing (from central authority to DRM receivers). Content preparation for immediate availability (text information, audio loops/feeds. Full receiver functionality to be implemented (including EWF and automatic wake-up). ANNEX 5B HD Radio Emergency Alert System The HD Radio system can provide important new and enhanced emergency alerting capability. This functionality can be added at low cost by any station that has implemented digital broadcasts using HD Radio technology. Unlike analogue based AM/FM alerts, HD Radio alerts can provide
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