VSAT Description
VSAT is the abbreviation for “Very Small Aperture Terminal” to describe receiver/transmitter terminals in the form of small earth station with the diameter of 0.9 to 3.8 meters, to transfer data, video or voice through means of satellite.
VSAT technology first appeared in the United States in early 1980s. In Indonesia, VSAT entered in 1989 inline with private banks requirement for online communication system such as ATM (Automated Teller Machine).
VSAT architecture consisted of :
- Ground Segment (earth segment), which is divided into :
- Indoor Unit (IDU), which contains satellite modem
- Outdoor Unit (ODU), which contains RFT, LNA and Antenna
- Space Segment namely satellite
The whole VSAT network is monitored and controlled by a Network Management System (NMS) which located in the Hub Network Operations Center (NOC).
Today, more than 120 countries have already been using VSAT with more than 500.000 installed terminals. As cost efficient communication solution, VSAT has been chosen by various industrial sectors which often faced by fact that technology adoption usually followed by higher operational cost. |
