SATELLITE COMMUNICATIONS

The centre is implementing ISRO’s SATCOM oriented societal applications programs like Tele-education, Telemedicine, Communication support in Disaster Management etc. in the states of the North Eastern Region. The centre has got the state-of-the art satellite communication facilities like Satcom studio for content generation, Spacenet system for intercommunication among ISRO/DOS Centres, transportable WLL-VSAT system, satellite phones (INSAT MSS Type-D terminals) and various equipments under Ka-band propagation experiment & IRNSS project.

Tele-education project in North Eastern States

During 2015-16, NESAC has accomplished following activities in this regards:

Handling of comprehensive annual maintenance of existing networks (HUB & SITs) in NER states by awarding contract to suitable agency

Technical Support & Training for existing network by putting dedicated manpower in each states by establishing a ‘Technical Support and Training Centre’ at NESAC through a suitable agency

Provided support for HUB operation by placing manpower under contract at each HUB

Continued revival of faulty node by arranging required spares Actions initiated for rectifying faulty SITs of Mizoram states Conducted a user meet for all the user of NER states

NESAC is also providing full technical and other support for the utilization of the network including visit to various network, trouble shootings, training, awareness program, content generation etc.

Telemedicine Program in NER

Revival of non-working Telemedicine node is initiated in consultation with DECU/ISRO. NESAC Engineers are visiting many sites for trouble shooting and technical Support.. Work for commissioning of new Telemedicine nodes is in progress according to the guidelines.

Communication Support in Disaster Management

DMS-VPN node is operational at NESAC including access to NDEM data. VC and data transfer activities continued with all node under DMS-VPN network. Transportable VSAT system is also working fine. The SMS based alert system under FLEWS project is continued. INSAT Type D terminal for audio calling using satellite for emergency communication is maintained at working level.

Ka band propagation experiment at NESAC

This experiment is a part of MoU signed by Hon’ble PM of India with France Government (ISRO-ONERA-CNES collaboration in space). It is administered by Space Applications Centre (SAC), Ahmedabad and NESAC is one of its participatory agency. It aims to study the effects of various meteorological parameters on Ka Band radio propagation. Under this project, a number on equipment like Disdrometer, Microrain Radar (MRR) etc. has been already commissioned and functional. Recently a Dual frequency Beacon Transmitter (20.2 and 30. 5 GHz), Radiometer, Rain gauge with data logging and processing systems are installed at NESAC by ONERA scientist. Data collection and processing using these systems is already started.

Indian Regional Navigation Satellite System (IRNSS) project at NESAC

The various station commissioned under ISRO’s IRNSS project are working fine. NESAC is providing full support for operating the station.

The field trial experiment of IRNSS SPS-GPS receiver is continued in collaboration with SAC, Ahmedabad.

Commissioning of 30 kVA Solar Power Plant at NESAC

A Solar Power Plant of 30 kVA is commissioned at NESAC campus as part of Green energy initiatives of ISRO. The plant is functional.