Thanks to the dynamic development of television broadcasting in the modern world, there is probably no person who does not encounter antennas. In order to watch their favorite TV shows in the best quality, the user needs to connect the antenna to his receiving equipment. And then the question arises: which antenna to choose, active or passive? In this article, we will consider in detail the features of each antenna, as well as the scope of their application. But first of all, it is necessary to give a detailed definition of the very term “antenna” and briefly describe the history of creation.
Heinrich HerzAntenna is a special device whose main task is to receive or emit radio waves. It converts the fluctuations of the electric current into a radio wave or vice versa. As can be seen from the definition, antennas can operate on reception, transmission, or transmission. The simplest antenna operation 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