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Quality of Service (QoS) for TCP and UDP Traffic Over Multimedia Satellite Networks With Differentiated Services
White Paper The next generation satellite communication system falls into three categories: broadcast system; beam switched bent pipe, also known as "Network access" system; and packet switched on-board processing... [04 Aug 2008]
Peter Cochrane's Blog: Out of range?
Comment To get the final throw I needed to focus the energy in a beam and enlisted the help of an old domestic satellite dish and a dongle. Written in a Lisbon hotel bedroom and dispatched via my home LAN two... [15 Jul 2008]
Five weird ways to bridge the digital divide
News Another connectivity contender for getting to out-of-the-way places is long-range wireless IP-based tech WiMax, which can beam connectivity over distances of tens of kilometres. The Wireless Innovation Alliance (WIA) -... [06 Mar 2008]
Techies split over wi-fi health fears
News The radio frequency radiation levels were up to three times the level transmitted from the main beam of a mobile phone mast, according to the programme. S is for Satellite But 59 per cent said they're... [24 May 2007]
Space web video chat lined up
News The European Space Agency (ESA) and German ISP T-Online will beam up the live space video chat to the International Space Station (ISS) on 28 November 2006, at 21:15(CET). The tech-savvy space agency ESA recently teamed... [23 Nov 2006]
Broadband wireless gets spectrum boost
News The high bandwidth combined with narrow-beam signal technology means a very large number of broadband users can co-exist on the spectrum without interference, Ofcom said. S is for Satellite phones Click... [10 Nov 2006]
US toys with emergency warning system update
News In an age of omnipresent mobile phone, internet and BlackBerry users, why does government rely primarily on analogue television and radio to beam its national emergency alerts? Last November, the Federal Communications... [21 Jul 2006]
Biometrics and RFID tracking on anti-crime wish-list
News For example, the Home Office Scientific Development Branch (HOSDB) is pioneering a new way to test motorists to see if they are under the influence of legal or illegal drugs, using spectroscopy to analyse saliva under a... [22 Nov 2005]
High Gain Advanced GPS Receiver
White Paper The NAVSYS High Gain Advanced GPS Receiver (HAGR) is a digital beam steering receiver designed for GPS satellite radio navigation and other spread spectrum applications. The modular hardware architecture... [25 Feb 2004]
Multiple Acces in Mobile Satellite Communication
White Paper The mobile satellites under consideration use multiple-beam antennas and employ frequency reuse of the allocated L-band frequency spectrum. For some time already a major effort is underway to deploy three types of... [25 Feb 2004]
BT Tower preserved for posterity
News To preserve the accuracy of the sensitive narrow-beam transmitters they had to be sited on a stable structure - the cylindrical shape of the tower reduced wind resistance. The other five buildings listed today are:... [26 Mar 2003]
