Alternative communication system during disaster Essay

PSTN or the customary switched telephone cyberspace is the prime interlock responsible for transmitting and receiving voice, fax and data. whole judicature and private moroseices, police stations, conduct packing stations, hospitals and major(ip)ity of homes and business places be serviced by the PSTN line. . Amateur Radio operation does not use ground found al-Qaeda. furthermore these arrive at limited power demand which can easily be met by batteries and generations. Therefore, it has been experienced that Amateur Radio has worked successfully when no another(prenominal) dialogue worked. A radio set flutter is an electromagnetic wave propagated by an antenna. The floods in 2004 in Assam and Bihar semiaquatic telephone exchanges and damaged telephone exchanges thereby disrupting roads and railways chat. This is the reason why the zone headquarters got totally out off from the area headquarters and neighbouring districts.A major natural disaster or need situat ion worry earthquake, cyclone, flood, and so on, leaves the state-supported outfit and wireless mobile telephone infrastructure damaged and non-functional. This is a transmission towers or disrupted power supply to channelize telephone exchanges and cellular transmission towers overly affect the radio chat mesh topology of police and civil authorities. Satellite based communication systems refer to communication systems intentional for users on the earth but have close to equipment in space called a satellite. Various jobs such as taking abide pictures or finding precise positions atomic number 18 amongst the different job performed by different satellites. These are sometimes refered to as COSMATs and are essentially radio relay stations in space. Geo-stationary revolve satellites are stationed higher up the earth at a position nearly 36000 kms above the equator.The images of weather forecasts and cyclone observations that we see on our tv are made with the help of images from weather satellites. A major disaster (flood, earthquake, etc.) or necessity situation affects telephone exchanges and communication networks thereby disconnecting the affected areas from other separate of the world. In such situations, the urgent involve of disaster affected population are not communicated to government authorities, voluntary organizations and other unaffected people. This result in atrocious loss of human lives, livestock, property etc. This situation calls for reliable alternate communication links, to ensure that the castigate resources are provided to the right people at the right time. asynchronous Orbit Satellites These satellites are positioned in the lowerorbits around the earth. These continuously change their position with honour to the earth.The different kinds of asynchronous orbit satellites are a) Science satellites These orbit in altitudes of 4800 to 9700 kms. These send their research data to earth via radio telemetry signals. b) Observation Satellites These are employ for tasks like search and rescue satellites, photography. These act as relay stations to rebroadcast emergency radio-beacon signals from a downed aircraft or ship in trouble. These orbit at altitudes from 480 to 970 kms. c) Global locating System Satellites Orbiting at altitudes of 9600 to 19200 kms, these are used to determine in terms of analogue ad longitude to determine the exact geographic location. The two prime communication networks of government of India are NIC and BSNL. Following are the functions of them NIC or the National Information Centre, an organization of the authorities of India is a prime minister science and engine room organization of the Government of India is a premier science and technology organization in the field of informatics services and reading technology applications.To facilitate information and communication applications in government departments at central, state and districts, it has established a na tionwide ICT network i.e. NICNET. The Government has designated NICNET as the Government Network. It has access modes in Central Government Departments, 35 state and union territories secretariats and 602 district soak up orates of India for IT services. BSNL The Department of Telephone Operations, Government of India was combine on 1st October, 2000 and was named Bharat Sanchar Nigam Limited. BSNL is today the largest public sector undertaking in India with a network of over 45 cardinal lines, covering 5000 towns with over 35 cardinal telephone connections, it has become the countrys leading telecommunicationmunication company enlargement of telecom network, improvement of the quality of telecom in rural areas are some of its major responsibilities.