![]() ![]() How can public authorities use high frequency (HF) radio broadcasting services to inform citizens during emergencies? Public service media represent the most trusted news brands in many countries, with radio still being the most trusted way of accessing news.ĭespite the proliferation of digital communications in recent years, trust in social media networks and sources has declined, while trust in legacy media, including radio, has remained stable or even increased. Regardless of evolving technical platforms, people rely on radio – especially from public broadcasters – for credible information, especially in times of crisis. DRM receivers are triggered to re-tune automatically to an emergency transmission (including optional auto-switch-on) while flashing the screen and increasing the audio volume.īut older technologies also continue to be useful. Radio distribution can therefore be fully integrated with public alert plans.ĭigital Radio Mondiale (DRM) natively supports emergency alert signalling (DRM Early Warning Functionality, or EWF) for immediate mass notification in case of impending disasters. What are the implications of more recent advances in radio broadcasting technologies?ĭigital Audio Broadcasting (DAB/DAB+) and other new technologies enable the appropriate authority to automatically tune people’s radio receivers to emergency channels. Many broadcasters are equipped to quickly install small, mobile, self-powered AM and FM transmitting stations in a crisis area. The mandate of public broadcasters normally includes the placement of spare transmitters and local power generators at key sites to ensure continued operation for a long time, even when other essential infrastructure is lost.Īny adequately equipped radio station can also set up local broadcasting sites to provide regular and trusted information. ![]() Secondly, broadcasters typically maintain an emergency plan, along with the necessary facilities, to keep their signal on the air and their newsgathering units and studios powered and operational in disaster situations. So radio broadcasting in either AM (amplitude modulation) or FM (frequency modulation) signals is still the most reliable way to obtain trustworthy, high-quality information every time, everywhere.įirstly, the broadcast infrastructure for radio is highly robust and usually remains operational even when other communications technologies – such as two-way voice and data services – fail. Radio receivers are inexpensive and require no access fees. When emergencies occur, people expect – and are prepared to receive – broadcasts through small battery-powered radio receivers. How can radio broadcasting operate effectively when infrastructure is destroyed? Its life-saving role remains widely recognized, as confirmed by surveys conducted after recent disasters. Radio ensures the fastest provision of information to the public. Since then, radio has proven agile and effective to spread information widely in critical situations. Radio became part of governmental emergency plans more than a century ago – as soon as broadcasting became available as a mature technology. All these situations call for informing people as rapidly and comprehensively as possible. Instances include natural disasters like tornadoes, hurricanes, tropical storms, floods, snowstorms, earthquakes, and tsunamis, as well as cases of terrorist violence, mass transportation accidents, and industrial and technological catastrophes. ![]() In every kind of emergency, the public needs accurate information quickly. How has radio broadcasting enhanced communications in disaster zones? As partners worldwide celebrate World Radio Day, ITU-R Study Group 6 chair Yukihiro Nishida explains the enduring advantages of radio broadcasting in emergency and disaster situations. Radio is a powerful medium for cooperation and peace, with the widest global audience.
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