Inmarsat's primary satellite television constellation consists of four Inmarsat-3 satellites in geostationary orbit. In between them, the main ("global") beams of the satellites provide overlapping coverage in the entire surface of the Earth apart on the poles. So, thanks to Inmarsat, it has become achievable to extend the reach of terrestrial wired and cellular networks to almost anyplace on Earth.
A geostationary satellite television follows a circular orbit in the plane of the Equator with a height of 35,600km, so that it appears to hover over a chosen point within the Earth's surface area. Three such satellites are ample to cover most of the globe, and mobile users rarely have to switch from just one satellite television to another. Other mobile satellite television systems use bigger numbers of satellites in lower, non-geostationary orbits. From the user's point of view, they move across the sky with a comparatively large speed, often requiring a switch from one satellite television to another in mid-communication and risking the possibility of an interrupted call.
A call from an Inmarsat cellular terminal goes directly for the satellite overhead, which routes it back down to a gateway within the ground called a land earth station (LES). From there the call is passed into the public telephone network.
The Inmarsat-3 satellites are backed up by a fifth Inmarsat-3 and four previous-generation Inmarsat-2s, also in geostationary orbit.
A key advantage in the Inmarsat-3s above their predecessors is their ability to generate a range of spot-beams as well as one large global beams. Spot-beams concentrate extra energy in places of high demand as well as which makes it possible to supply standard services to smaller, simpler terminals.
Inmarasat is a consortium of leading global telecommunications organizations originally established in 1991. The Inmarasat system is designed to produce high top quality satellite-based services to a broad range of customers, such as:
* Voice calling * Short Messaging Service (SMS) * Roaming * Positioning * Facsimile * Information transmission
Checkout The Most Recent Information Regarding Satelite Telephone: Upcoming Of Communication Technology
Wondering how people in secluded parts of the world stay connected to the world? it is true that there are places in the world, there virtually is no existence of mobile network, but in such places we have satellite phones that match our requirements and work effectively.
Checkout The Most Recent Story About The Launches Of Inmarsat IsatPhone Pro
Inmarsat today launched its new global handheld satellite phone, the IsatPhone Pro. Retailing for as little as US$500, the phone will be a 'game changer' in this specialist market.
Checkout The Most Recent Story Regarding Rental Sat Handset
Innovation like that of satellite phones has allowed us to communicate from the interior most corners of the world, which would have been impossible with the help of cell phones.
Learn About The Latest Story Regarding The IsatPhone Pro's Formal Release
The Inmarsat Isatphone ProThe IsatPhone Pro's Official Launch is equipped with full global coverage. With easy to use functions and a rugged style is aimed at government, media and health care industries.
Checkout The Most Up-To-Date Story With Regards To IsatPhone Pro Ever First Call And Images Presented
The first images of IsatPhone Pro have been released to coincide with the announcement of the first call to be made using the new global handheld phone.
Learn About The Most Up-To-Date News About The Best Popular Features Of The Inmarsat IsatPhone-Pro
The IstatPhone-Pro is set for release in June of 2010. Through the innovation of Inmarsat and other partners, they are able to deliver the ultimate satellite phone.
Get The Most Recent News With Regards To The Launches Of Inmarsat's New Handheld Satellite Phone
The company said its new handheld satellite phone has a long battery life and is priced at $699, with promotional prices expected to be around $500 to $600.
My Journey to Marketing Success with Alex Jeffreys
List Building Made Easy