How is internet provided on ship?
E-mail is still an unheard thing for many seafarers mainly because of unaffordable Broadband IP connectivity. Presently the seafarers use to dial up connection which allows them to send only short text e-mails. This is quite useless, keeping in business, data transfer in mind, which involves voluminous e-mails with equally large attachments. Thus the need of the situation requires an Internet infrastructure that is similar to the broader Internet services that are provided on land. This will not only help business and commerce, but also will keep the ship staff more happy, when they can chat with their loved ones at shore more economically. The latter is equally important because of the isolated conditions in which the sailors have to live away from their family and helps to reduce stress.
Keeping these problems in mind, shipping community is taking steps to improve the communication system. Providing broadband Internet facilities to ships with the help of cables is obviously impossible. The only option that is feasible , is providing Internet through satellite. Many new satellites have a launch to facilitate this purpose, and to improve the Internet coverage area, keeping in mind the vast oceans. The old source of providing communication system to ships, Inmarsat system is now used with this newly launched satellites, which utilizes applications such as VSAT(Very small aperture terminal ).
More affordable services being provided by clubbing the land-based technology, and the satellite technology. The services utilizes Internet protocol virtual private networks ( IP VPN) which prevents the hackers and thus help the companies to protect their vital data. The system consists of a signal relaying device which resembles a radar, a satellite earth station, and satellite. This system allows an unlimited and seamless broadband connectivity with the speed up to 512K bps which enables voice calling, e-mail transferring, GPS system and also web browsing.