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Q. What is the difference between VSAT and terrestrial line such as leased line?

VSAT operates over satellite whereas leased line is using cable. The advantage of VSAT is that it bypasses the terrestrial cable lines and therefore is immune to the frequent cable problems such as cable break, voltage leak, cross talk, and lightning induction that may damage customer equipment. In terms of cost, leased line becomes expensive for long-distance connection that requires stringing a long line of cables. However, the cost of VSAT is the same irrespective of where it is installed because it goes directly to the satellite.


Q. How long does it take to install a VSAT system?

The actual installation can be completed in a few hours. Normally, we need to do a preliminary survey to the site. We also need to ship the antenna to the location before the actual work can be started. The whole installation typically takes about 3 days.


Q. Do I need to prepare anything before installing a VSAT system?

Yes, you need to set aside a space to erect the antenna that ranges from 1.8 to 3.8 meter in diameter. This space needs to be verified by our field technician to ensure that there's no nearby obstruction such as trees that may block the line-of-sight to the satellite. The installation is similar to setting up a parabola antenna for receiving TV satellite broadcasts.


Q. What about the security of the VSAT network?

The wireless nature of VSAT makes it a secure telecommunication medium. Compared to cable that can be easily tapped, VSAT is immune to interception. The transmission in a VSAT network is done in digital and the network traffic is scrambled. VSAT has been trusted by banks to carry the financial transactions.


Q. Do I need to install an external router to setup IP network over the VSAT?

Our VSAT system has been designed around IP network. As such the system is highly optimized with built-in IP bridging / routing, packet compression, packet prioritization, protocol spoofing, and remote LAN monitoring. Therefore, the VSAT unit is already functioning as a router. The remote unit has a built-in 10base-T RJ45 socket, and RS-232 ports to carry SLIP/PPP connections.


Q. Can I connect to the Internet via your VSAT?

Yes, because the VSAT system is IP-enabled, you can connect the VSAT system to the Internet via your preferred ISP. Our VSAT system supports asymmetric bandwidth utilization. Therefore, you may be able to take advantage of this feature to support the asymmetric nature of Internet access. We are able to provide outbound of up to 200 Kbps and inbound of up to 400 Kbps.


Q. Should I worry about satellite delay?

Satellite delay is caused by the distance that the signal has to travel from the VSAT unit to the satellite. This delay of second is present in all satellite-based services including the long-distance phone call that we use today. The throughput performance however, remains unaffected.
A single hop delay is the delay caused by the transmission from a VSAT unit to another unit. However, certain VSAT topology uses the master hub-station as the transit gateway to connect between two remote units and that introduces a two hop delay for each transmission. Voice calls are especially sensitive to the delay problem. Our SmartLink solution provides a single hop link between any two points. That means the remote VSAT unit can call the other without having to go through the master hub-station.


Q.  What is 'Sun Outage'?

Sun Outage happens when the satellite, the earth and the VSAT unit is in perfect alignment. As a result, transmission / reception of the VSAT unit may be affected by the Sun. This event can be calculated. It happens twice every year and lasts for only a few minutes. We always give advanced notice to our customers on the actual date and time. Normally, it does not adversely affect the network uptime.


Q. Can I install VSAT in any location in Indonesia?

Yes, you can install VSAT unit in any remote location inside Indonesia. The footprint of Palapa satellite covers the entire Asia Pacific region.