headquarters_location surrey satellite technology
In the context of spaceflight , a satellite is an artificial object which has been intentionally placed into orbit . Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as Earth ' s Moon . A two - way radio is a radio that can do both transmit and receive a signal ( a transceiver ), unlike a broadcast receiver which only receives content . A two - way radio ( transceiver ) allows the operator to have a conversation with other similar radios operating on the same radio frequency ( channel ). Two - way radios are available in ___MASK23___ , stationary base and hand - held portable configurations . Hand - held radios are often called walkie - talkies , handie - talkies , or just hand - helds . The University of ___MASK59___ is a public research university located within the county town of ___MASK45___ , ___MASK59___ , in the South East of England , United Kingdom . The university specialises in science , engineering , medicine and business . It received its charter on 9 September 1966 , and was previously situated near Battersea Park in south - west London . The institution was known as " Battersea College of Technology " before gaining university status . Its roots , however , go back to the " Battersea Polytechnic Institute ", founded in 1891 to provide further and higher education for London ' s poorer inhabitants . ___MASK3___ is a country that is part of the ___MASK95___ . It shares land borders with Scotland to the north and Wales to the west . The Irish Sea lies northwest of ___MASK3___ and the Celtic Sea lies to the southwest . ___MASK3___ is separated from continental Europe by the North Sea to the east and the English Channel to the south . The country covers five - eighths of the island of Great Britain ( which lies in the North Atlantic ) in its centre and south ; and includes over 100 smaller islands such as the ___MASK79___ , and the Isle of Wight . Wireless communication is the transfer of information or power between two or more points that are not connected by an electrical conductor . The most common wireless technologies use radio . With radio waves distances can be short , such as a few meters for television or as far as thousands or even millions of kilometers for deep - space radio communications . It encompasses various types of fixed , ___MASK23___ , and portable applications , including two - way radios , cellular telephones , personal digital assistants ( PDAs ), and wireless networking . Other examples of applications of radio " wireless technology " include GPS units , garage door openers , wireless computer mice , keyboards and headsets , headphones , radio receivers , satellite television , broadcast television and cordless telephones . ___MASK49___ Park is a 200 ___MASK28___ ( 83 - hectare ) green space at ___MASK49___ in the London Borough of Wandsworth in London . It is situated on the south bank of the River Thames opposite Chelsea , and was opened in 1858 . ___MASK45___ is a large town in Surrey , England , located southwest of central London on the A3 trunk road midway between the capital and Portsmouth . It is the seat of the borough of ___MASK45___ . Amateur radio ( also called ham radio ) describes the use of radio frequency spectrum for purposes of non - commercial exchange of messages , wireless experimentation , self - training , private recreation , radiosport , contesting , and emergency communication . The term " amateur " is used to specify " a duly authorised person interested in radioelectric practice with a purely personal aim and without pecuniary interest ;" ( either direct monetary or other similar reward ) and to differentiate it from commercial broadcasting , public safety ( such as police and fire ), or professional two - way radio services ( such as maritime , aviation , taxis , etc .). Commercial broadcasting ( also called " private broadcasting ") is the broadcasting of television programs and radio programming by privately owned corporate ___MASK35___ , as opposed to state sponsorship . It was the United States  first model of radio ( and later television ) during the 1920s , in contrast with the public television model in Europe during the 1930s , 1940s and 1950s which prevailed worldwide ( except in the United States ) until the 1980s . The ___MASK95___ of Great Britain and Northern Ireland , commonly known as the ___MASK95___ ( UK ) or Britain , is a sovereign country in western Europe . Lying off the north - western coast of the European mainland , it includes the island of Great Britain ( the name of which is also loosely applied to the whole country ), the north - eastern part of the island of Ireland , and many smaller islands . Northern Ireland is the only part of the UK that shares a land border with another sovereign statethe Republic of Ireland . Apart from this land border , the UK is surrounded by the Atlantic Ocean , with the North Sea to its east , the English Channel to its south and the Celtic Sea to its south - south - west , giving it the 12th - longest coastline in the world . The Irish Sea lies between Great Britain and Ireland . With an area of , the UK is the 78th - largest sovereign state in the world and the 11th - largest in Europe . It is also the 21st - most populous country , with an estimated 65 . 1 million inhabitants . Together , this makes it the fourth most densely populated country in the European Union . ___MASK59___ is a county in the south east of England and also one of the home counties bordering Greater London . ___MASK59___ shares borders with Kent to the east , East Sussex to the south - east , West Sussex to the south , Hampshire to the west and south - west and Berkshire to the north - west . The county town is ___MASK45___ . ___MASK59___ County Council sits extraterritorially at Kingston upon Thames , administered as part of Greater London since 1965 . With a resident population of 1 . 1 million , ___MASK59___ is the most densely populated and third most populated county in the South East region , after Kent and Hampshire . In physics , an orbit is the gravitationally curved path of an object around a point in space , for example the orbit of a planet about a star or a natural satellite around a planet . Normally , orbit refers to a regularly repeating path around a body , although it may occasionally be used for a non recurring trajectory or a path around a point in space . To a close approximation , planets and satellites follow elliptical orbits , with the ___MASK56___ mass being orbited at a focal point of the ellipse , as described by Kepler ' s laws of planetary motion . ___MASK59___ Satellite Technology Ltd , or SSTL , is a spin - off company of the University of ___MASK59___ , now majority - owned by EADS Astrium , that builds and operates small satellites . Its satellites began as amateur radio satellites known by the UoSAT ( University of ___MASK59___ SATELLITE ) name or by an OSCAR ( Orbital Satellite Carrying Amateur Radio ) designation . SSTL cooperates with the University ' s ___MASK59___ Space Centre , which does research into satellite and space topics . SSTL moved into remote sensing services with the launch of the Disaster Monitoring Constellation ( DMC ) in 2002 and an associated child company , DMC International Imaging . SSTL also adopted the Internet Protocol for the DMC satellites it builds and operates , migrating from use of the AX . 25 protocol popular in amateur radio . The CLEO Cisco router in Low Earth Orbit , on board the UK - DMC satellite along with a network of payloads , takes advantage of this adoption of the Internet Protocol . SSTL is also developing a new Geostationary Minisatellite Platform - Transfer orbit variant ( GMP - T ) aimed at the telecommunications market under the brand name SSTL - 900 . The University sold a 10 % share of SSTL to SpaceX in January 2005 . It then agreed to sell its majority share ( roughly 80 % of the capital ) to EADS Astrium in April 2008 . In August 2008 SSTL opened a US subsidiary . SSTL was awarded the Queen ' s Award for Technological Achievement in 1998 , and the Queen ' s Awards for Enterprise in 2005 . In 2006 SSTL won the Times Higher Education Supplement award for outstanding contribution to innovation and technology . In 2009 SSTL ranked 89 out of the 997 companies that took part in the Sunday Times Top 100 companies to work for . Non - commercial ( also spelled noncommercial ) refers to an activity or entity that does not , in some sense , involve ___MASK81___ , at least relative to similar activities that do have a commercial objective or emphasis . For example , advertising - free community radio stations are typically nonprofit organizations staffed by individuals volunteering their efforts to air a wide variety of radio programming , and do not run explicit radio advertisements , included in the United States specific grouping of " non - commercial educational " ( NCE ) public radio stations . Some Creative Commons licenses include a " non - commercial " option , which has been controversial in definition . The Moon is an astronomical body that orbits planet Earth , being Earth ' s only permanent natural satellite . It is the fifth - largest natural satellite in the Solar System , and the largest among planetary satellites relative to the size of the planet that it orbits ( its primary ). Following ___MASK22___ ' s satellite Io , the Moon is second - densest satellite among those whose densities are known .