Communication System at the Time of Disaster (E)

Efficient and accurate information is important in case of any calamity but all systems become non-functional in case of disaster. In such events there are communication methods, which can keep the systems connected. One such system is Ham Radio. Scientists working at Vigyan Prasar tell how both ways communication works without wire and how this radio system is useful during disasters. On the other hand researchers working at IIT Madras have developed the DISHNET system through which mobile service can be used during disasters.