With an increase in the volume of information flows and an increase in the number of communication interactions in which people participate daily, the means of communication have developed rapidly over the past two to three decades: now we use mobile phones and the Internet on a regular basis.
Having the opportunity to contact anyone and whenever on land, a person can no longer afford to remain without communication for a long time while traveling on water. The same applies to receiving news: we are already used to learning about important events in a matter of minutes after they are completed, therefore it is not surprising that when sailing across the sea, we want to watch news programs, sports Continue reading
The article considers all modern models of satellite terminals BGAN from Thrane & Thrane and Hughes.
Time does not stand still, the modern world is changing every second, what yesterday was a breakthrough in science, today is no longer perceived as something amazing. The development of the satellite industry was no exception. In a short time, the direction stepped forward, became more interactive and user-oriented.
Satellite terminals BGAN
Today, the global broadband network in the Inmarsat BGAN system is the first service in the world that simultaneously provides Internet access and the ability to use telephony using a portable terminal. The BGAN service operates on three fourth-generation geostationary satellites Inmarsat I-4. Using these satellites, in direct line of sight, almost the entire planet, with the exception of the polar regions, can be covered by a guaranteed Internet connection.
Despite the small size of the equipment, BGAN satellite terminals have a powerful antenna that allows you 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