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Exterior view of the LOIS Test Station showing five three-dimensional vector-sensing antennas and the box which contains GPS timing systems, computer hardware as well as high-speed switches and fibre connections. [Position in World Geodetic System 84 coordinates: 56 deg 52 min 42.3 sec (=56.8784 deg) N, 14 deg 56 min 35.5 sec (=14.9432 deg) E. Altitude: 235.68 m]. January, 2005. 
Interior view of the LOIS Test Station showing the broadband optical fibre node (right) and the controlling 64-bit computers (left) September 2005. 
The LOFAR infrastructure is located in the Netherlands and northwestern Germany. LOIS is located in southern Sweden with Växjö as hub. LOIS will have 32 stations when fully built, as shown schematically in the picture. 
Precision GPS measurements of fix points at the LOIS test station outside Växjö. September, 2004, to provide the sensor position accuracy necessary for radio imaging. 
Former LOIS doctoral student Mykola Khotyiantsev (middle) flanked by the elite athletes Erica Mårtensson and Carolina Klüft, students at the `Friidrottsuniversitetet' (Athlete Unversity) in Växjö. The picture was taken in connection with the live broadcast from Växjö University campus made by the `Vetenskapsradion' (Swedish Science Radio) on Oktober 13, 2003, when LOIS was presented. 
The LOIS project leader, Bo Thidé (left), and professor Vitaly Lazarevich Ginzburg, Nobel Laureate in Physics 2003, discussing new low-frequency radio facilities for space research from Earth and from space, including the far side of the Moon. The picture was taken 1997 in Uglich, Russia, during the Volga Summer School on Space Plasma Physics. Many of professor Ginzburg's physical ideas on radio studies of space have gone into the design of LOIS. |
Lars K. S. Daldorff and Axel W. Guthmann flanking the new IBM servers, a cluster of two Blade Centers with 56 64-bit CPU's for LOIS data handling, analysis and simulation, and a P5 server, to be used as the LOIS development and visualisation platform. 
Due to an unexpectedly large space weather storm on 8 November 2004, this magnificent aurora borealis (northern light display) was seen as far south as Uppsala. LOIS aims at providing accurate forecasts for such solar storms which can seriously harm technical and biological systems. Picture taken by Walter Puccio, chief radio research engineer for the LOIS project. 
A closeup photo of one the innovative LOIS digital radio receivers mounted directly on each of the LOIS three-dimensional vector sensing antennas. Every antenna/receiver unit measures both the local magnitude and the direction of the radio field 125 million times per second at points on the ground whose positions are known to with a few cm accuracy relative to each other. Each such antenna/receiver unit produces 6 Gigabits of raw data per second. 
Picture of the log-periodic antenna at the Teracom broadcast station at Hörby (55.49 deg N, 13.44 deg E) to be used in the upcoming LOIS/LOFAR deep space radar tests. The Hörby transmitter can deliver up to 500 kW of RF power in the 3-30 MHz frequency range to the antenna. 
One of two telescopes optimized for 1420 MHz (21 cm) hydrogen band observations installed the 6th of may 2004 on the roof of the ngstrm laboratory, home of the Swedish Institute of Space Physics in Uppsala, where the idea for LOIS was born in 2000. Technician Harley Thomas (in picture) was responsible for the installation. An identical telescope was installed on the `Rymdhuset' (Space House) in Växjö. (Photo: Teddy Thörnlund) |
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LOIS pictures