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Effelsberg joins the e-EVN

Submitter: Zsolt Paragi
Description: On 1 April 2008 the first real-time e-VLBI observation took place that included the 100 meter telescope at Effelsberg (Germany) along with regular e-VLBI participants from the European VLBI Network: Cambridge(UK), Jodrell Bank (UK), Medicina (Italy), Onsala (Sweden), Torun (Poland) and Westerbork (the Netherlands).

Data from Effelsberg were transferred electronically at approximately 1 Gbps to JIVE, resulting in a record-breaking total throughput of 6.71 Gbps from all seven stations. The data transfer from Effelsberg is credited in large part to 42 km of new optical fibre from Effelsberg to Bonn, funded by the Max-Planck-Society. From Bonn the data was sent via DFN, GEANT and SURFnet to JIVE.

The insets shows a sample fringe and the total data transfer into JIVE during the test. The addition of Effelsberg means a tremendous boost of sensitivity for the e-EVN network, bringing its capacity to the same level as that obtained using traditional magnetic media.
Copyright: EXPReS project
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