Immediately after the mayhem, some ham radio volunteers rushed to the affected areas and were supported by fellow operators across the country. Soon this mode became an important lifeline of communication in the disaster-affected areas where telecommunication networks were extensively damaged during the rains.
Radio amateurs use a variety of voice, text, image and data communication modes and have access to frequency allocations throughout the radio frequency spectrum to enable communication across a city, region, country, continent, the world, or even into space.
Jose Jacob, VU2JOS, is operating from Dehradun as the emergency communication base station.
"We are flooded with distress messages of relatives of those who are missing in Uttarakhand. We are daily getting calls from Kolkata, Delhi, Kerala, Rajkot," Jacob told PTI.
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"We pass on the missing list received to the state secretariat," he said.
Another ham station has been set up in Barkot in Uttarkashi where Mukesh Gola, VU2MCW, is being assisted by three more ham operators collecting information about missing persons through local ham radio VHF network.