Thuraya Telecoms and WiCis Sports support climbers
Dubai United Arab Emirates, March 30, 2016. Leading mobile satellite operator Thuraya and WiCis Sport have joined forces to support expeditions to the Himalayas. Starting on March 19, a six-month…

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Iridium GMDSS in a first-person interview
The safety of sea-going sailors is a top priority. The Global Maritime Distress Communication System (GMDSS) was established more than twenty years ago to ensure an adequate level of maritime…

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Iridium completes historic launch of ten satellites
On January 11, 2019, Iridium announced that at 07:30 p.m. Pacific time, the SpaceX Falcon 9 rocket, tested in flight, with the last ten Iridium NEXT satellites for the low-orbit…

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Swivel Antenna

Probably many people know that television satellites are in a geostationary orbit, which is a circular orbit located above the Earth’s equator (0 latitude), on which, an artificial satellite rotates around the planet with an angular velocity equal to the angular velocity of the Earth’s rotation around its axis, and constantly dwells on the same point on the earth’s surface. The satellites are located on the so-called polar arc (photo 1) at an altitude of approximately 36,900 km above sea level, the satellite’s altitude is not chosen randomly, but based on calculations of centrifugal force so that the satellite does not fall to the ground and does not fly into open space. So, a rotary antenna is a motorized antenna, designed in such a way that when moving it describes exactly the same arc as the one on which the satellites in space are located. Due to the Earth’s gravitational force and the centrifugal force that counteracts it, the satellites are stationary relative to the earth’s surface, so it’s enough to install a device (motor) to move the antenna along the given satellite Continue reading

VSAT systems for sea and river transport
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…

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How to choose an omnidirectional TV antenna on a ship
How to choose and buy a well-known brand antenna for receiving terrestrial television and radio signals in the sea How to choose an omnidirectional TV antenna on a ship The…

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Providing telephone communications to remote moving objects using VSAT
Providing telephone communications to remote mobile objects is essential for many modern organizations. Despite the systematic increase in coverage of mobile networks of the main operators, there are still quite…

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Only the new Dreambox can be the best DreamBox!
Dream-Multimedia company again delighted fans of sat tv, releasing a new product - the Dreambox dm 7020 s model. At first glance, the receiver remained the same as its previous…

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