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In May 2009, Inmarsat and Solaris mobile (a joint venture between Eutelsat and Astra) were awarded each a 2×15 MHz portion of the S band by the European Commission. The two companies are allowed two years to start providing pan-European MSS services for 18 years. 2 GHz for space to Earth communications. In some countries, S band is used for Direct-to-Home satellite television (unlike similar services in most countries, which use Ku band). 570 GHz). 4 GHz section of the S band. Digital cordless telephones operate in this band too.

A smaller dish size and a Ku band system’s freedom from terrestrial operations simplifies finding a suitable dish site. For the End users Ku band is generally cheaper and enables smaller antennas (both because of the higher frequency and a more focused beam). Ku band is also less vulnerable to rain fade than the Ka band frequency spectrum. The satellite operator's Earth Station antenna do require more accurate position control when operating at Ku band than compared to C band. Position feedback accuracies are higher and the antenna may require a closed loop control system to maintain position under wind loading of the dish surface.

Experiments in the tens of kilowatts have been performed at Goldstone in California in 1975 and more recently (1997) at Grand Bassin on Reunion Island. In 2008 a long range transmission experiment successfully transmitted 20 watts 92 miles from a mountain on Maui to the main island of Hawaii. Microwave radio relay Heinrich-Hertz-Turm in Germany Microwave radio relay is a technology for transmitting digital and analog signals, such as long-distance telephone calls and the relay of television programs to transmitters, between two locations on a line of sight radio path.

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