INSAT – 3B is the first of the five ISRO built
satellites under INSAT – 3 series to join INSAT system. INSAT – 3B
is collocated with INSAT – 2E at 83 deg East Longitude. This satellite
primarily serves to business communication, mobile communication and
it provides the first set to transponders for Swaran Jayanti Vidya Vikas
Antariksh Upagraha Yojana (Vidya Vahini) for interactive training and
developmental communication giving fillip to the training and developmental
Communication channel of INSAT.