Launched seven years ago, the mini-VSAT broadband network was the first to leverage the capabilities of spread spectrum technology to provide global multi-megabit services to ships at sea with small, powerful antennas.
Providing the opportunity to take full advantage of the VSAT service – namely, speed and economy – by installing only compact and affordable on-board antenna systems, has become a truly winning strategy for mini-VSAT. Therefore, it is not surprising that mini-VSAT Broadband has become a best-seller among marine VSAT services.
Encouraged by this success, KVH has created the next generation of mini-VSAT Broadband Network. Using ACSM technology (adaptive coding, expansion, and modulation), network bandwidth has tripled over the past year. More efficient transmission technology, enhanced satellite throughput and automatic updates for the entire installed base of antenna systems – all these have become the basic principles of a network that Continue reading
Satellite antennas are made as solid / all-stamped, mesh and precast / sectional. The solid ones are made of a whole metal sheet and have a shape without technical holes and joints. Their signal reception quality is better than the others, and the design is less prone to kinks and defects during operation.
Mesh antennas are assembled from strips, forming a receiving grid. Their advantage is less windage, so mesh satellite dishes are preferred in areas with increased wind load.
Prefabricated antennas are made of petals and can be compactly packed for transportation and long-term storage. They, like sectional ones, are convenient for regular transfer, as they are easy to fold and allow you to quickly deploy the system. Cons of the design – in the weak joints of the petals, which are easily broken and require regular professional maintenance.
Mesh satellite dishes have slightly worse signal quality than all-metal antennas, but not due to technical holes. Since for the correct reflection of the beam the shape of the mirror must be strictly parabolic, it is Continue reading
Many of those who read these lines, probably, can recall those already quite distant times when the first satellite dishes began to appear on balconies and roofs of houses in our cities. Each such dish (or parabolic antenna) was, in some way, a landmark of the region – they looked at them with envy, and their owners were considered demigods. For these same owners of such plates had at their disposal a wide open window to another world – the world of multi-channel television. However, people who were not initiated, as a rule, did not really know how many channels the owner of such an antenna could receive, but all the same, they envied and were sure that there were “a lot”.
Years passed – the plates were reduced in size, overgrown with various additional “lotions” such as multifidov, motor suspensions and other gadgets. And cheaper, they grew in clusters on the roofs and walls of buildings, gradually turning from a luxury item into an ordinary household item, into the necessary and only available (for many viewers) television viewing tool. Which also continued to evolve, turning from analog to digital, increasing the number of pixels in the picture and sound quality and transforming into new forms.
In parallel with the technological plan, other means of delivering electronic data from one point to another — cable, terrestrial broadcasting, and the Internet — have also evolved. In particular, the latter. The speeds increased, the Continue reading