Utilization of transportable WLL-VSAT system

The transportable WLL-VSAT of NESAC is consists of satellite modem, Spectrum analyzer, VC equipments, Diesel Generator, UPS, Telephone equipments, VoIP set, WLL system, GPS receiver, antenna of diameter 1.8 m etc. mounted on a Toyota Qualis vehicle to make the system transportable. The system works in C-band (frequency 4-6 GHz) and can work both in DAMA (Demand Assigned Multiple Access) and PAMA (Permanent Assigned Multiple Access) mode. The system was registered under ISRO SPACENET and Telemedicine network in INSAT 3B and INSAT 3A respectively. The Hub station for both the network is at ISTRAC, Bangalore. Using this system communication can be made with fixed station at NESAC or any other terminal under ISRO SPACENET, NEOC (National Emergency Operation Centre), SEOC (State Emergency Operation Centre) or any of the expert terminals under VPN (Virtual Private Network) of Ministry of Home Affairs, Govt. of India.

The objectives of the system are:

  • Communication support during disaster management

  • Interactive Training Program for societal development

  • Science popularization program etc.

Some of the major utilization of this system is as follows:

  • This system was taken to Majuli, Assam which the largest river island of World in September, 2002 for mock drill for communication supports for disaster during 21-23 Sept, 2002. The system was installed there and audio, video, data communication was established with NESAC and other centres. We organized training program for the personnel of water resource department of Govt. of Assam regarding utilization of the system during disaster. The mock drill was quite fruitful.

  • This system also used for School Interaction Program during Sept, 2002 in Majuli, Assam. Under this program video conferencing was conducted in between students of Meghalaya State Electricity Board High School, Umiam, Meghalaya and Majuli Auniati Hemchandra H.S. School, Kamalabari, Majuli, Assam. The students from both the ends interacted live with each other. They exchanged their views, shared their knowledge, discussed about their personal interests, hobbies, about their school, extracurricular activities, about their place, culture etc. The students were impressed and thrilled to have been able to participate in the programme.

  • During the flood in Nalbari district of Assam in 2004, the WLL system was installed at the Deputy Commissioner’s Office at Nalbari. The Rescue and Relief operators were given the WLL handsets which they used to communicate to the DC sitting at Nalbari. In absence of any other communication media, the system helped them to expedite the relief operation and decision making process.

  • The WLL-VSAT has also been transported to various places in NER like Agartala, Tripura; Guwahati, Assam etc. where it was linked to different stations in NER or other parts of India for preparedness and creating awareness among masses regarding the tackling of disaster and its management.

  • This system was used in the mock drill program on 6th March, 2009 organized by Centre for Adult & Continuing Education, North Eastern Hill University (NEHU), Shillong as a part of training program in disaster risk management and demonstrated the use of transportable WLL-VSAT system in disaster situation.

  • Using this system, an interactive training program was conducted in October, 2002 in collaboration with State Institute of rural Development (SIRD), Meghalaya and Dept. of Soil Conservation, Govt. of Meghalaya to train the people working in watershed developmental activities in a village called Thangsning at a distance of 25 k.m. from Shillong. The program was quite successful.

  • This system was utilised for many times for conducting a number of video conferencing program for scientist-student interaction, student-student interaction as a part Science Popularization Program during national and state level Children Science Congress organised at various places of NER over the last ten years.

  • A number of tele-consultancy has been conducted using this system by connecting a number of hospital like Guwahati Medical College & Hospital, Guwahati, Assam; Regional Institute of Medical Science, Imphal, Manipur; Dr. B Barooah Cancer Institute, Guwahati, Assam; Civil Hospital, Jorhat, Assam; 151 Base Hospital, Guwahati, Assam; Military Hospital, Shillong, Meghalaya; CGHS Dispensary, Shillong, Meghalaya etc. A number of patients as well doctors are being benefitted by these program.

Using this system, the telemedicine session of the XVIth Scientific Conference cum general body meeting of Meghalaya Medical Services Association was conducted in Shillong in February, 2009. A live presentation program was conducted among the doctors of Megahalaya and doctors of Rabindranath Tagor International Institute of Cardiac Science (RTIICS), Kolkata followed by series of interaction through video conferencing. The program quite impressive to the doctor.