When disaster strikes, and conventional communication systems fail, amateur ham radio operators step in to bridge the gap, providing a crucial link between those in affected areas and the outside world.
Source: ADnet
Source Link: https://www.zdnet.com/home-and-office/networking/how-ham-radio-endures-and-remains-a-disaster-lifeline-in-the-iphone-era/#ftag=RSSbaffb68